user63: This is tangentially related are there particular questions.
This Cooking.SE meta post puts what I'm trying to say into context. This is the official policy on meta tags.
Are some of these non-series, tags appropriately used? technology,
plot-explanation, mistranslation,crossover, analysis, sound-effects, meme, zanpakuto, quote, boxing, business. 
Most of questions might only need the series tag. E.g., if you already have a tag for akira adding plot-explanation seems redundant, because chances are you are asking about something plot-related (e.g. In the manga, why were Tetsuo and Kaneda fighting during the Y incident?). However, there might be some requires that require more context. E.g., if you want to know something specific about the author of Akira, tagging akira and manga-ka might make more sense. 
If you are asking about what certain "sound effects" mean, it might be more appropriate for JLU. But if you are asking about a specific interjection a particular series's character, like Kinomoto Sakura's "hoe" exclamation. It can easily just fall under the card-captor-sakura series tag with maybe a character.
Tags like production and culture might be useful when asking general questions about anime/manga production (How did Type-Moon go about making Tsukihime?) and otaku subculture (Why are French maids the most popular type of maids in anime and manga?). 
I'm unsure about tags like tropes and translation as a some question may be off-topic (In Japanese, why does X mean Y) or not constructive (what are a list of tropes found in Q series?).
How do we make sure the tags are properly utilized?
Should we make guidelines for tagging non-series meta tags that don't correspond with any specific content, so we can avoid unnecessary/excess tags?

user27: Tags on other sites do not strictly conform to the "series" equivalents.
While Stack Overflow does have php, c++ and python, it also has git, forms and display. Each of this do not strictly relate to any specific programming language (or in our case, series), but they do provide helpful information about the question.
After all, that's what tags are for, if we wanted series only tags, we would have to call them "categories", don't you think?
I don't consider technology a meta tag for instance. A meta tag is a tag which describes the question, and not the content of the question. An example for a meta tag is spoilers, which doesn't give me any indication on what the content of the question is, but only tells me it has spoilers (which make it a bad tag).
I would agree though, plot-explanation seems redundant, as by default, that's what I as a read/answerer assumes the question is about. It is also on the border of meta-tag.

63: <p><em>This is tangentially related are <a href="https://anime.meta.stackexchange.com/questions/169/what-should-be-the-policy-regarding-character-specific-tags">there</a> <a href="https://anime.meta.stackexchange.com/questions/161/should-we-use-author-and-animation-studio-tags">particular</a> <a href="https://anime.meta.stackexchange.com/questions/85/what-should-our-tags-be-for-the-ending-song-of-an-episode-and-the-ending-fina">questions</a>.</em></p>

<p>This <a href="https://cooking.meta.stackexchange.com/questions/434/please-zap-the-meta-tags-and-dependent-tags">Cooking.SE meta post</a> puts what I'm trying to say into context. This is the <a href="http://blog.stackoverflow.com/2010/08/the-death-of-meta-tags/">official policy</a> on meta tags.</p>

<p>Are some of these <strike>non-series,</strike> tags appropriately used? <strike>technology</strike>,
<a href="https://anime.stackexchange.com/questions/tagged/plot-explanation" class="post-tag" title="show questions tagged &#39;plot-explanation&#39;" rel="tag">plot-explanation</a>, <a href="https://anime.stackexchange.com/questions/tagged/mistranslation" class="post-tag" title="show questions tagged &#39;mistranslation&#39;" rel="tag">mistranslation</a>,<a href="https://anime.stackexchange.com/questions/tagged/crossover" class="post-tag" title="show questions tagged &#39;crossover&#39;" rel="tag">crossover</a>, <a href="https://anime.stackexchange.com/questions/tagged/analysis" class="post-tag" title="show questions tagged &#39;analysis&#39;" rel="tag">analysis</a>, <a href="https://anime.stackexchange.com/questions/tagged/sound-effects" class="post-tag" title="show questions tagged &#39;sound-effects&#39;" rel="tag">sound-effects</a>, <a href="https://anime.stackexchange.com/questions/tagged/meme" class="post-tag" title="show questions tagged &#39;meme&#39;" rel="tag">meme</a>, <a href="https://anime.stackexchange.com/questions/tagged/zanpakuto" class="post-tag" title="show questions tagged &#39;zanpakuto&#39;" rel="tag">zanpakuto</a>, <a href="https://anime.stackexchange.com/questions/tagged/quote" class="post-tag" title="show questions tagged &#39;quote&#39;" rel="tag">quote</a>, <a href="https://anime.stackexchange.com/questions/tagged/boxing" class="post-tag" title="show questions tagged &#39;boxing&#39;" rel="tag">boxing</a>, <a href="https://anime.stackexchange.com/questions/tagged/business" class="post-tag" title="show questions tagged &#39;business&#39;" rel="tag">business</a>. </p>

<p>Most of questions might only need the series tag. E.g., if you already have a tag for <a href="https://anime.stackexchange.com/questions/tagged/akira" class="post-tag" title="show questions tagged &#39;akira&#39;" rel="tag">akira</a> adding <a href="https://anime.stackexchange.com/questions/tagged/plot-explanation" class="post-tag" title="show questions tagged &#39;plot-explanation&#39;" rel="tag">plot-explanation</a> seems redundant, because chances are you are asking about something plot-related (e.g. In the manga, why were Tetsuo and Kaneda fighting during the Y incident?). However, there might be some requires that require more context. E.g., if you want to know something specific about the author of Akira, tagging <a href="https://anime.stackexchange.com/questions/tagged/akira" class="post-tag" title="show questions tagged &#39;akira&#39;" rel="tag">akira</a> and <a href="https://anime.stackexchange.com/questions/tagged/manga-ka" class="post-tag" title="show questions tagged &#39;manga-ka&#39;" rel="tag">manga-ka</a> might make more sense. </p>

<p>If you are asking about what certain "sound effects" mean, it might be more appropriate for JLU. But if you are asking about a specific interjection a particular series's character, like Kinomoto Sakura's "hoe" exclamation. It can easily just fall under the <a href="https://anime.stackexchange.com/questions/tagged/card-captor-sakura" class="post-tag" title="show questions tagged &#39;card-captor-sakura&#39;" rel="tag">card-captor-sakura</a> series tag with maybe a <a href="https://anime.stackexchange.com/questions/tagged/character" class="post-tag" title="show questions tagged &#39;character&#39;" rel="tag">character</a>.</p>

<p>Tags like <a href="https://anime.stackexchange.com/questions/tagged/production" class="post-tag" title="show questions tagged &#39;production&#39;" rel="tag">production</a> and <a href="https://anime.stackexchange.com/questions/tagged/culture" class="post-tag" title="show questions tagged &#39;culture&#39;" rel="tag">culture</a> might be useful when asking general questions about anime/manga production (How did Type-Moon go about making Tsukihime?) and otaku subculture (Why are French maids the most popular type of maids in anime and manga?). </p>

<p>I'm unsure about tags like <a href="https://anime.stackexchange.com/questions/tagged/tropes" class="post-tag" title="show questions tagged &#39;tropes&#39;" rel="tag">tropes</a> and <a href="https://anime.stackexchange.com/questions/tagged/translation" class="post-tag" title="show questions tagged &#39;translation&#39;" rel="tag">translation</a> as a some question may be off-topic (In Japanese, why does X mean Y) or not constructive (what are a list of tropes found in Q series?).</p>

<p>How do we make sure the tags are properly utilized?</p>

<p>Should we make <a href="https://meta.stackexchange.com/questions/61307/on-guidelines-to-tagging-and-avoiding-unnecessary-tags">guidelines</a> for tagging non-series meta tags that don't correspond with any specific content, so we can avoid unnecessary/excess tags?</p>
 27: <p>Tags on other sites do not strictly conform to the "series" equivalents.</p>

<p>While Stack Overflow does have <a href="https://anime.stackexchange.com/questions/tagged/php" class="post-tag" title="show questions tagged &#39;php&#39;" rel="tag">php</a>, <a href="https://anime.stackexchange.com/questions/tagged/c%2b%2b" class="post-tag" title="show questions tagged &#39;c++&#39;" rel="tag">c++</a> and <a href="https://anime.stackexchange.com/questions/tagged/python" class="post-tag" title="show questions tagged &#39;python&#39;" rel="tag">python</a>, it also has <a href="https://anime.stackexchange.com/questions/tagged/git" class="post-tag" title="show questions tagged &#39;git&#39;" rel="tag">git</a>, <a href="https://anime.stackexchange.com/questions/tagged/forms" class="post-tag" title="show questions tagged &#39;forms&#39;" rel="tag">forms</a> and <a href="https://anime.stackexchange.com/questions/tagged/display" class="post-tag" title="show questions tagged &#39;display&#39;" rel="tag">display</a>. Each of this do not strictly relate to any specific programming language (or in our case, series), but they do provide helpful information about the question.</p>

<p>After all, that's what tags are for, if we wanted series only tags, we would have to call them "categories", don't you think?</p>

<p>I don't consider <a href="https://anime.stackexchange.com/questions/tagged/technology" class="post-tag" title="show questions tagged &#39;technology&#39;" rel="tag">technology</a> a meta tag for instance. A meta tag is a tag which describes the <em>question</em>, and not the <em>content</em> of the question. An example for a meta tag is <a href="https://anime.stackexchange.com/questions/tagged/spoilers" class="post-tag" title="show questions tagged &#39;spoilers&#39;" rel="tag">spoilers</a>, which doesn't give me any indication on what the content of the question is, but only tells me it has spoilers (which make it a bad tag).</p>

<p>I would agree though, <a href="https://anime.stackexchange.com/questions/tagged/plot-explanation" class="post-tag" title="show questions tagged &#39;plot-explanation&#39;" rel="tag">plot-explanation</a> seems redundant, as by default, that's what I as a read/answerer assumes the question is about. It is also on the border of meta-tag.</p>
