Or, will it be too general, or too meta-Meta, or too infrequently used, or ...?
If you LIKE the idea of site-cleanup, UPVOTE THIS ANSWER.
Whatever you do, please don’t start a retagging marathon!
There is a user over at Travel who is working very very hard to fit even the absolute last question that was posted in 2011 and lost relevance two weeks later with the correct tags. Basically, if you go to Travel Meta, there are about five pages worth just tag edit’s of his. Please don’t do that.
If questions pop up due to edits, feel free to add a relevant tag to them. If they pertained to a historical event, just let them be.
If you DISLIKE the idea of site-cleanup, UPVOTE THIS ANSWER.