It's not because the realm is an RP based server, all realms are full of trolls. Any realm from PVP to New Players could be full of trolls, it's all to do with the communities within the realms as well as the character / player base. RP Has nothing to do with immaturity or trolls. I enjoy RPing in my spare time " Preparing for hate " However it's rather enjoyable from time to time. I myself enjoy creating stories and events which involve a community based aspect.
Not everyone on an RP Realm is a complete asshole, it's just player orientated. The realm isn't to blame, it's the players in general.