I dislike pretty much everything listed here in some degree. And even though it is also a pet-peeve I am guilty of dropping out of rps without warning and it is an awful habit I am ashamed of and working on to change. I think I've improved but still needs work. Another thing I cannot stand is when relationships are forced in a rp. This both means both people want their characters together but are too lazy/impatient to actually develop it and they go from friends to lovers in an unrealistic way and when someone tries to force their character with yours. Sometimes they even have the nerve to be offended and try and use guilt trips when you deny their character advances no matter how an unlikely pair the two are. Per example my character was already developing a relationship with someone then a character they didn't even know comes up and makes advances. Dropped so many hints and then actual straight-froward 'pls no' comments and she still tried to get in-between the first two people's relationship and her character even got depressed when mine rejected her. After a week of knowing each other. Maybe things like these happen but she wasn't supposed to be a stalker or anything but felt like she was just obsessed with my character. It was awful... Ah...I really rambled with that. Never really got to do so before so there it all is... But yes, tldr; shipping can be very fun but it should never be forced.