user107: It seems like a lot of tags that are anything other than "series-name" become the subject of debate in meta. So, what other tags are actually OK? You don't really need to list every other tag that is OK. It would probably be more helpful to describe what makes some of these other tags acceptable.
I raise this question because it seems a little odd that so many questions only have one tag (their series name).
To quote Madara Uchiha (the user, not the character):

If we wanted series only tags, we would have to call them "categories", don't you think?


user71: There are very few tags that make sense beyond the tag for a series name.
The only ones that generally make sense are for covering non-specific-anime topics, such as  production, anime-history, or voice-actors.
There are a few other tags like japanese-language, or 3d-animation/visual-effects or doujinshi/fan-works that could be added onto a series-name. The criteria for these is that someone who is not at all interested in a series might still follow these tags and be helpful for any random questioner. (respectively, a language student, an animator, and someone active in the doujin scene)

user27: As a general rule of thumb, ask yourself "Could there be an expert on this subject?"
There can be an expert on the following subjects (for example, not limited to):

Naruto (series-name-here)
anime-production or [manga-production]
anime-history

There probably cannot be an expert on the following:

characters and character-abilities
variations
opening-songs

These tags are under discussion right now, we aren't sure about whether to keep them or not.

107: <p>It seems like a lot of tags that are anything other than "series-name" become the subject of debate in meta. So, what other tags are actually OK? You don't really need to list every other tag that is OK. It would probably be more helpful to describe what makes some of these other tags acceptable.</p>

<p>I raise this question because it seems a little odd that so many questions only have one tag (their series name).</p>

<p>To quote <a href="https://anime.meta.stackexchange.com/questions/301/how-should-we-deal-with-meta-and-dependent-tags/305#305">Madara Uchiha</a> (the user, not the character):</p>

<blockquote>
  <p>If we wanted series only tags, we would have to call them "categories", don't you think?</p>
</blockquote>
 71: <p>There are very few tags that make sense beyond the tag for a series name.</p>

<p>The only ones that generally make sense are for covering non-specific-anime topics, such as  <a href="https://anime.stackexchange.com/questions/tagged/production" class="post-tag" title="show questions tagged &#39;production&#39;" rel="tag">production</a>, <a href="https://anime.stackexchange.com/questions/tagged/anime-history" class="post-tag" title="show questions tagged &#39;anime-history&#39;" rel="tag">anime-history</a>, or <a href="https://anime.stackexchange.com/questions/tagged/voice-actors" class="post-tag" title="show questions tagged &#39;voice-actors&#39;" rel="tag">voice-actors</a>.</p>

<p>There are a few other tags like <a href="https://anime.stackexchange.com/questions/tagged/japanese-language" class="post-tag" title="show questions tagged &#39;japanese-language&#39;" rel="tag">japanese-language</a>, or <a href="https://anime.stackexchange.com/questions/tagged/3d-animation" class="post-tag" title="show questions tagged &#39;3d-animation&#39;" rel="tag">3d-animation</a>/<a href="https://anime.stackexchange.com/questions/tagged/visual-effects" class="post-tag" title="show questions tagged &#39;visual-effects&#39;" rel="tag">visual-effects</a> or <a href="https://anime.stackexchange.com/questions/tagged/doujinshi" class="post-tag" title="show questions tagged &#39;doujinshi&#39;" rel="tag">doujinshi</a>/<a href="https://anime.stackexchange.com/questions/tagged/fan-works" class="post-tag" title="show questions tagged &#39;fan-works&#39;" rel="tag">fan-works</a> that could be added onto a series-name. The criteria for these is that someone who is not at all interested in a series might still follow these tags and be helpful for any random questioner. (respectively, a language student, an animator, and someone active in the doujin scene)</p>
 27: <p>As a general rule of thumb, ask yourself "Could there be an expert on this subject?"</p>

<p>There <strong>can</strong> be an expert on the following subjects (for example, not limited to):</p>

<ul>
<li>Naruto (<a href="https://anime.stackexchange.com/questions/tagged/series-name-here" class="post-tag" title="show questions tagged &#39;series-name-here&#39;" rel="tag">series-name-here</a>)</li>
<li><a href="https://anime.stackexchange.com/questions/tagged/anime-production" class="post-tag" title="show questions tagged &#39;anime-production&#39;" rel="tag">anime-production</a> or [manga-production]</li>
<li><a href="https://anime.stackexchange.com/questions/tagged/anime-history" class="post-tag" title="show questions tagged &#39;anime-history&#39;" rel="tag">anime-history</a></li>
</ul>

<p>There probably <strong>cannot</strong> be an expert on the following:</p>

<ul>
<li><a href="https://anime.stackexchange.com/questions/tagged/characters" class="post-tag" title="show questions tagged &#39;characters&#39;" rel="tag">characters</a> and <a href="https://anime.stackexchange.com/questions/tagged/character-abilities" class="post-tag" title="show questions tagged &#39;character-abilities&#39;" rel="tag">character-abilities</a></li>
<li><a href="https://anime.stackexchange.com/questions/tagged/variations" class="post-tag" title="show questions tagged &#39;variations&#39;" rel="tag">variations</a></li>
<li><a href="https://anime.stackexchange.com/questions/tagged/opening-songs" class="post-tag" title="show questions tagged &#39;opening-songs&#39;" rel="tag">opening-songs</a></li>
</ul>

<p>These tags are under discussion right now, we aren't sure about whether to keep them or not.</p>
