I asked Wikia Staff about the deletion of the "Squidward Community College" wiki (part of a meme about a fictional college), and they said they're going to get rid of all meme, humor, and random wikis.
(I censored the staff member's name because I don't want them to get death threats.)
This could be the end of UnAnything, RNW, and several other wikis. Best to stay alert about this.