I think it's actually not bad when it's not so overdone. I mean, the basic stereotype is "Fox who forgets people in the ass". If you can change that into an actually fun medium that's interesting and different, I'm all for it. I've seen people with fully robotic fursuits. I've seen suits that open and close jaws with the user's jaw. They play noises, they do things. That's interesting. A poorly drawn picture of a turtle giving a kangaroo oral love isn't.