A few months ago, most MLP stuff wasn't tagged feral. I even made a thread to ask about one of what I saw as one of the more difficult cases, that being Gilda the Gryphon. Now a search for 'friendship_is_magic feral' returns 17 pages of images, the style of which is not always that vastly different from the style of those images that aren't tagged feral.
Technically, this means most MLP stuff is still not tagged feral, as there's like 200 pages of it. Still. It's a significant shift, and I've personally witnessed the way dedicated retagging campaigns can change patterns in the future.
If MLP stuff is considered a 'cartoonish feral' style now, there's a lot of new tags to add! Not that there's anything wrong with that.
Updated by Huskeee