Given two recent posts on meta on the topic of removing tags (conditioning and numerics), I was wondering if there is an interest among some users to install a regular "tag review". The idea is to look globally at all tags, see if there are any issues and propose a set of modifications to be approved by the community. Clearly, this should not interfere with ad hoc requests. I'm happy to volunteer to participate in such a recurrent action.
Maybe my answer will bump this post for Geoff to see.
Also notice in beta site,
Users with more than 1250 reputation and a total answer score of 5 or more on the tag, can suggest tag synonyms. Users with a total answer score (total upvotes minus total downvotes) of 5 or more on the tag, can vote for tag synonyms.
But the question with any beta sites is that there are many useless tags, and users haven't been able to gain 5 or more scores on one to tag the synonyms. For example:
Lastly my suggestion is that, like a site self-evaluation here: Let's get critical: Jul 2013 Site Self-Evaluation , we should make a tag self-evaluation.