The clean up idea sounds good, but what is to keep these non value tags from being resurrected after the tsunami? I had suggested a while ago about having [low rep users tag creation][1] face similar scrutiny of First Posts. This review process could help keep some control by the community to eliminate vague tags from being created in the first place. [1]: https://meta.superuser.com/questions/6604/poppin-tags-or-an-idea-anyway