Furry conventions have been going for 40 years. There are more than 50 of them catering to a worldwide "furry fandom" of millions. Is there a boiling cauldron of innovation there that I'm not aware of? From the outside it looks almost mainstream at this point.

Right? When Spencer's Gifts is using the word "yiff" in advertising, you can't quite call it underground now lol

Hmm. I wonder if the real issue is we've run out of deviations? The space of innovative new deviations that are sufficiently attractive to matter may have been mined out.

I wonder if you were to plot out the costume variations if they would be increasing or decreasing over time.