>>1
Almost every society in history, and most historical philosophers, and psychologists have realized that incest is a common enough fantasy of the human mind. As much as because it is forbidin than anything else. You just happened to find a group of anonymous people that either don't give a fuck what they say, realize there is no accountability for what they say here, just love to say stupid shit, or some might actually harbor stong fantasies of this nature, and a few might even act upon them. Regardless you shouldn't be offended by shit you find on 4chan, as most of it isn't actually meant by anyone. Just relax and laugh at them, or join in with us and have some fun.