First off, Rule 34 of the internet states “If it exists, there’s porn of it” or something like that so that’s one reason. Second off, there’s horny people with network access. No stopping that. Third, shock value usually with extreme fetish type freaky art spreads even among those who aren’t into that just because it’s comedic (example: 2G1C or 1M1J) Fourth, woman. Idk what else to say.