Not meaning to call anyone out or insult here - Just my own opinion. But refuse to try and understand or advocate the portrayal of abuse/violence in an RP in any romantic or glorified context... I see a lot of 1x1 stories where people effectively want to write an abusive relationship (some psychologically, but some literally). I understand (to an extent) the idea of a BDSM exploration... but straight up abuse in an RP just freaks me out... Coming as someone who dealt with that as a child, I just cannot for the life of me see the draw. Even with villains, I try to keep them from being too overtly creepy, because honestly, there is just no appeal in that sort of character.
OH! Also... haha - While I wouldn't necessarily NOT RP it myself, I cannot fathom why people who have never had a kid or experienced pregnancy would want to RP it and 99.9999% of the time, it is so unrealistic that it physically hurts me in the soul. Pregnancy... isn't fun. It really isn't. It's awful, messy, smelly and uncomfortable XD
I should stop hitting enter till I'm done...
Smut/sex scenes/non-fade-to-black : Basically for me this is a two fold (maybe three fold) problem. The first being that I just don't find it entertaining. Dean Koontz once said something along the lines of when you start writing sex scenes clinically, you're no longer an author - you're a doctor.
The second problem is that I am old fashioned and a married lady with kids XD and it's my opinion that the only person I want to engage in sexual activities with is that handsome baby daddy of mine - fictional or not.
Third problem - which is less of a problem on this site, but a HUGE problem on other sites is that you just never know who you're writing with, age wise... and I am NOT getting arrested *lol*