There are definitely some creeps out there.

I've seen a few cases on Crystal over the years of someone using CMTool + mods to create porn of another persons character without their consent, often sending it to them afterwards as some kind of creepy overture. I've also run into a lot of modders who don't really have a filter/boundaries, and will just dump their erotic screenshots (without asking) into any discord they join. It doesn't really bother me personally as I think it's kind of funny, but I can definitely see where other people might feel grossed out.