user2159: As part of the preparations to the graduation of the site, I'm proposing to review of all the existent tags wiki/excerpt and write those that aren't still written.
What should you look for:

It's a dump of an out-site resource? write yourself one.
Has inaccurateness? Update it.
Doesn't exist? Write something original
Too short? Expand it.
Not sure what to do? Ask in Chat!

For you lazy like me efficient users, I modified some query in the SEDE to find the ones that are currently written and pasted it below which have more than 10 questions. This other query will find the ones that still doesn't exist, so you can find tags to write a master piece!

user2159: Follows is a list of tags in need of cleanup. Pick your favorite and go go go!
Tag                 tag count   tag link
naruto                   372    https://anime.stackexchange.com/edit-tag-wiki/7
identification-request   246    https://anime.stackexchange.com/edit-tag-wiki/188 
anime-production         112    https://anime.stackexchange.com/edit-tag-wiki/17 
one-piece                109    https://anime.stackexchange.com/edit-tag-wiki/1 
fullmetal-alchemist       82    https://anime.stackexchange.com/edit-tag-wiki/35 
tropes                    80    https://anime.stackexchange.com/edit-tag-wiki/113 
bleach                    70    https://anime.stackexchange.com/edit-tag-wiki/28
dragon-ball               44    https://anime.stackexchange.com/edit-tag-wiki/9 
anime-history             43    https://anime.stackexchange.com/edit-tag-wiki/159
pokemon                   40    https://anime.stackexchange.com/edit-tag-wiki/137 
culture                   40    https://anime.stackexchange.com/edit-tag-wiki/147 
japanese-language         33    https://anime.stackexchange.com/edit-tag-wiki/143 
death-note                32    https://anime.stackexchange.com/edit-tag-wiki/14 
fairy-tail                32    https://anime.stackexchange.com/edit-tag-wiki/43 
manga-production          31    https://anime.stackexchange.com/edit-tag-wiki/262 
terminology               25    https://anime.stackexchange.com/edit-tag-wiki/200 
symbolism                 24    https://anime.stackexchange.com/edit-tag-wiki/29 
code-geass                23    https://anime.stackexchange.com/edit-tag-wiki/110 
sword-art-online          23    https://anime.stackexchange.com/edit-tag-wiki/66
monogatari-series         23    https://anime.stackexchange.com/edit-tag-wiki/553 
madoka-magica             22    https://anime.stackexchange.com/edit-tag-wiki/73 
theme-song                20    https://anime.stackexchange.com/edit-tag-wiki/85 
music                     20    https://anime.stackexchange.com/edit-tag-wiki/208 
toaru-majutsu-no-index    20    https://anime.stackexchange.com/edit-tag-wiki/272 
fate-stay-night           18    https://anime.stackexchange.com/edit-tag-wiki/71 
hunter-x-hunter           17    https://anime.stackexchange.com/edit-tag-wiki/103 
neon-genesis-evangelion   16    https://anime.stackexchange.com/edit-tag-wiki/118 
from-the-new-world        16    https://anime.stackexchange.com/edit-tag-wiki/346 
shingeki-no-kyojin        16    https://anime.stackexchange.com/edit-tag-wiki/404 
steins-gate               15    https://anime.stackexchange.com/edit-tag-wiki/25 
manga-history             14    https://anime.stackexchange.com/edit-tag-wiki/308 
nanoha                    14    https://anime.stackexchange.com/edit-tag-wiki/253 
the-world-god-only-knows  13    https://anime.stackexchange.com/edit-tag-wiki/263 
merchandise               13    https://anime.stackexchange.com/edit-tag-wiki/420 
toaru-kagaku-no-railgun   12    https://anime.stackexchange.com/edit-tag-wiki/273 
another                   11    https://anime.stackexchange.com/edit-tag-wiki/510 
mangaka                   11    https://anime.stackexchange.com/edit-tag-wiki/42 
darker-than-black         11    https://anime.stackexchange.com/edit-tag-wiki/115 
cardcaptor-sakura         11    https://anime.stackexchange.com/edit-tag-wiki/91  (needs body)
fate-zero                 11    https://anime.stackexchange.com/edit-tag-wiki/69  (excerpt fixed; needs body)
voice-acting              10    https://anime.stackexchange.com/edit-tag-wiki/38 


2159: <p>As part of the <a href="https://anime.meta.stackexchange.com/q/875/2159">preparations to the graduation of the site</a>, I'm proposing to review of all the existent tags wiki/excerpt and write those that aren't still written.</p>

<p>What should you look for:</p>

<ul>
<li>It's a dump of an out-site resource? write yourself one.</li>
<li>Has inaccurateness? Update it.</li>
<li>Doesn't exist? Write something <em>original</em></li>
<li>Too short? Expand it.</li>
<li>Not sure what to do? Ask in <a href="http://chat.stackexchange.com/rooms/6697/maid-cafe-">Chat</a>!</li>
</ul>

<p>For you <strike>lazy like me</strike> efficient users, <a href="http://data.stackexchange.com/anime/revision/175433/224687/tags-with-tag-wikis" rel="nofollow noreferrer">I modified some query</a> in the SEDE to find the ones that are currently written and pasted it below which have more than 10 questions. <a href="http://data.stackexchange.com/anime/revision/175433/224693/tags-without-tag-wikis" rel="nofollow noreferrer">This other query will find</a> the ones that still doesn't exist, so you can find tags to write a master piece!</p>
 2159: <p>Follows is a list of tags in need of cleanup. Pick your favorite and go go go!</p>

<pre><code>Tag                 tag count   tag link
naruto                   372    <a href="https://anime.stackexchange.com/edit-tag-wiki/7">https://anime.stackexchange.com/edit-tag-wiki/7</a>
identification-request   246    <a href="https://anime.stackexchange.com/edit-tag-wiki/188">https://anime.stackexchange.com/edit-tag-wiki/188</a> 
anime-production         112    <a href="https://anime.stackexchange.com/edit-tag-wiki/17">https://anime.stackexchange.com/edit-tag-wiki/17</a> 
one-piece                109    <a href="https://anime.stackexchange.com/edit-tag-wiki/1">https://anime.stackexchange.com/edit-tag-wiki/1</a> 
fullmetal-alchemist       82    <a href="https://anime.stackexchange.com/edit-tag-wiki/35">https://anime.stackexchange.com/edit-tag-wiki/35</a> 
tropes                    80    <a href="https://anime.stackexchange.com/edit-tag-wiki/113">https://anime.stackexchange.com/edit-tag-wiki/113</a> 
bleach                    70    <a href="https://anime.stackexchange.com/edit-tag-wiki/28">https://anime.stackexchange.com/edit-tag-wiki/28</a>
dragon-ball               44    <a href="https://anime.stackexchange.com/edit-tag-wiki/9">https://anime.stackexchange.com/edit-tag-wiki/9</a> 
anime-history             43    <a href="https://anime.stackexchange.com/edit-tag-wiki/159">https://anime.stackexchange.com/edit-tag-wiki/159</a>
pokemon                   40    <a href="https://anime.stackexchange.com/edit-tag-wiki/137">https://anime.stackexchange.com/edit-tag-wiki/137</a> 
culture                   40    <a href="https://anime.stackexchange.com/edit-tag-wiki/147">https://anime.stackexchange.com/edit-tag-wiki/147</a> 
japanese-language         33    <a href="https://anime.stackexchange.com/edit-tag-wiki/143">https://anime.stackexchange.com/edit-tag-wiki/143</a> 
death-note                32    <a href="https://anime.stackexchange.com/edit-tag-wiki/14">https://anime.stackexchange.com/edit-tag-wiki/14</a> 
fairy-tail                32    <a href="https://anime.stackexchange.com/edit-tag-wiki/43">https://anime.stackexchange.com/edit-tag-wiki/43</a> 
manga-production          31    <a href="https://anime.stackexchange.com/edit-tag-wiki/262">https://anime.stackexchange.com/edit-tag-wiki/262</a> 
terminology               25    <a href="https://anime.stackexchange.com/edit-tag-wiki/200">https://anime.stackexchange.com/edit-tag-wiki/200</a> 
symbolism                 24    <a href="https://anime.stackexchange.com/edit-tag-wiki/29">https://anime.stackexchange.com/edit-tag-wiki/29</a> 
code-geass                23    <a href="https://anime.stackexchange.com/edit-tag-wiki/110">https://anime.stackexchange.com/edit-tag-wiki/110</a> 
sword-art-online          23    <a href="https://anime.stackexchange.com/edit-tag-wiki/66">https://anime.stackexchange.com/edit-tag-wiki/66</a>
monogatari-series         23    <a href="https://anime.stackexchange.com/edit-tag-wiki/553">https://anime.stackexchange.com/edit-tag-wiki/553</a> 
madoka-magica             22    <a href="https://anime.stackexchange.com/edit-tag-wiki/73">https://anime.stackexchange.com/edit-tag-wiki/73</a> 
theme-song                20    <a href="https://anime.stackexchange.com/edit-tag-wiki/85">https://anime.stackexchange.com/edit-tag-wiki/85</a> 
music                     20    <a href="https://anime.stackexchange.com/edit-tag-wiki/208">https://anime.stackexchange.com/edit-tag-wiki/208</a> 
toaru-majutsu-no-index    20    <a href="https://anime.stackexchange.com/edit-tag-wiki/272">https://anime.stackexchange.com/edit-tag-wiki/272</a> 
fate-stay-night           18    <a href="https://anime.stackexchange.com/edit-tag-wiki/71">https://anime.stackexchange.com/edit-tag-wiki/71</a> 
hunter-x-hunter           17    <a href="https://anime.stackexchange.com/edit-tag-wiki/103">https://anime.stackexchange.com/edit-tag-wiki/103</a> 
neon-genesis-evangelion   16    <a href="https://anime.stackexchange.com/edit-tag-wiki/118">https://anime.stackexchange.com/edit-tag-wiki/118</a> 
from-the-new-world        16    <a href="https://anime.stackexchange.com/edit-tag-wiki/346">https://anime.stackexchange.com/edit-tag-wiki/346</a> 
shingeki-no-kyojin        16    <a href="https://anime.stackexchange.com/edit-tag-wiki/404">https://anime.stackexchange.com/edit-tag-wiki/404</a> 
steins-gate               15    <a href="https://anime.stackexchange.com/edit-tag-wiki/25">https://anime.stackexchange.com/edit-tag-wiki/25</a> 
manga-history             14    <a href="https://anime.stackexchange.com/edit-tag-wiki/308">https://anime.stackexchange.com/edit-tag-wiki/308</a> 
nanoha                    14    <a href="https://anime.stackexchange.com/edit-tag-wiki/253">https://anime.stackexchange.com/edit-tag-wiki/253</a> 
the-world-god-only-knows  13    <a href="https://anime.stackexchange.com/edit-tag-wiki/263">https://anime.stackexchange.com/edit-tag-wiki/263</a> 
merchandise               13    <a href="https://anime.stackexchange.com/edit-tag-wiki/420">https://anime.stackexchange.com/edit-tag-wiki/420</a> 
toaru-kagaku-no-railgun   12    <a href="https://anime.stackexchange.com/edit-tag-wiki/273">https://anime.stackexchange.com/edit-tag-wiki/273</a> 
another                   11    <a href="https://anime.stackexchange.com/edit-tag-wiki/510">https://anime.stackexchange.com/edit-tag-wiki/510</a> 
mangaka                   11    <a href="https://anime.stackexchange.com/edit-tag-wiki/42">https://anime.stackexchange.com/edit-tag-wiki/42</a> 
darker-than-black         11    <a href="https://anime.stackexchange.com/edit-tag-wiki/115">https://anime.stackexchange.com/edit-tag-wiki/115</a> 
cardcaptor-sakura         11    <a href="https://anime.stackexchange.com/edit-tag-wiki/91">https://anime.stackexchange.com/edit-tag-wiki/91</a>  (needs body)
fate-zero                 11    <a href="https://anime.stackexchange.com/edit-tag-wiki/69">https://anime.stackexchange.com/edit-tag-wiki/69</a>  (excerpt fixed; needs body)
voice-acting              10    <a href="https://anime.stackexchange.com/edit-tag-wiki/38">https://anime.stackexchange.com/edit-tag-wiki/38</a> 
</code></pre>
