Has anybody noticed a new tag, "neffy", on a good number of pieces as of late?
http://danbooru.donmai.us/post?tags=neffy
Checking the wiki, it seems this tag seems to be corrseponding to nothing in particular - none of images with this tag seem to have something in common with each other. Further checking the tag history of the images under this tag, it's all added by one user, Neferterys, whose entire tag history (http://danbooru.donmai.us/post_tag_history?user_id=12878) is just adding this "neffy" tag to countless images.
I'd chalk it up to an inexperienced user who doesn't know that the favorite feature exists, but anyway, could someone with the appropriate power/ability nuke this tag and/or mass-edit it from the 160+ images that have it already?
Updated