ERP in EVE can be creepy.
It goes against CCPs listed Terms of Service, and as such, anyone indulging in it opens themselves up to being reported. It may be a trap. Claim that someone was erping at you, in a harassment petition. That sort of thing.
"You may not use any abusive, defamatory, ethnically or racially offensive, harassing, harmful, hateful, obscene, offensive, sexually explicit, threatening or vulgar language. "
"You may not use “role-playing” as an excuse to violate these rules."
It can be used as a method of harassing players, particularly ones that are slightly more vulnerable than others, e.g. younger players, women players.
explicit chatlogs, published in order to bully and harass someone, make them give up playing that character/playing EVE altogether.
Used in public, as a method of disrupting a channel - turning people away from using a channel.