here's the deal: furries have this condition in which the compass the human mind has to determine what is a decent amount of genetic variation for healthy offspring is completely f**king off-scale. so the less human looking something is, the more they want to hump it. that's what my own research has lead me to believe. it's the "exotic" taken to the extreme.
now, there's a bit of a diference between the fetish itself(which dates to ancient times) to the community that SomethingAwful started an open war against back in the first years of the last decade. particularly, the mindset that these broken people have once they're in a comfortable space, non judgemental place. a lot of people joined these communities to gain attention by making content or just creating drama: roleplaying, bitching, indulging and acting like overall f**kwits, which is why everyone started to hate them after a while.