<p>My opinion is <em>yes</em>.  Tags are one of the most important SE features for keeping the site organized.  I believe it is crucial to have tags organized properly to keep the site running smoothly, and will always require some level of effort at upkeep / maintenance.  There are several options that exist for doing so:  </p>

<ol>
<li>Edit tag wiki's, and especially (IMO) tag wiki excerpts to indicate how the tag should be used.  </li>
<li>Make a tag a synonym of another tag.  </li>
<li>Extensive (typically) editing of tags on existing questions.  </li>
</ol>

<p>Option #1 is the easiest and most practical, although it mainly only has an influence going forward (i.e., your second #2).  Option #2 is very difficult to do in practice; you cannot nominate or vote on tag synonyms until you have 5 votes on the tag, and no one ever looks at the <a href="https://stats.stackexchange.com/tags/synonyms">tag synonym vote page</a>, so suggested synonyms just sit there collecting dust.  (Note also that once a tag is made a synonym, it is harder to find the indexed questions--a problem that <a href="https://meta.stackexchange.com/questions/135466/how-can-you-find-questions-with-ses-search-features-that-have-now-defunct-tags">has never been fixed</a> to my knowledge.)  In my opinion, option #3 can be disruptive when it's done with more than a couple of threads, so you are either disrupting the main page, or it's a major pain to do it over time.  </p>

<p>Thus, my primary suggestion is to edit the tag wiki excerpt (option #1).  The question is <em>what</em> we should have for the various tags, <strong>and that should be discussed here before moving forward.</strong>  </p>

<p><em>Below, I note some of my suggestions regarding these issues.</em>  </p>
