I've noticed the sql-faq tag, which has this description:
These should all be generic answers to common SQL questions. They can be referenced, or used as a point to merge questions that were not researched well enough in the first place.
This should not be used as a tag for questions that you do not have answers to, or specific functionality of your application or need. Instead, please ask a new, generic question, and post a clear answer to it yourself, so everyone can clarify further, or help with better responses.
It seems to have been created and is being edited into questions by this user: David Manheim
It seems pretty 'meta' to me; it's about the type of question, rather than the topic of the question, for which a sql tag already exists. Another mild concern of mine is that David seems to be taking it upon himself to "generalize" SQL questions so they can be tagged with this tag. While I don't think that has damaged any existing questions he has edited, it certainly could, if something related to a particular brand of SQL gets removed.
The edit descriptions David uses are also instructive; he seems to be on a very well-intentioned quest to build up a generalized SQL reference with this tag.
I think he's got some good thoughts, but I think the tag needs to be kiboshed. (it's too small to get burninated yet, imo!)
EDIT: There's nothing here I could not do myself, such as by editing out the tag and leaving him a comment. but I wanted to make sure I was thinking along the right lines, first.