You know RBL is right, Ferentus had a rather nice community. I will say almost any p2p game will have a nicer community because people don't gloat and scam when they have to pay a monthly fee for it.
Anyway, City of Heroes (EU) has a good community, I never encountered any jerks but there probably are a few, somewhere. Everytime I had a party everyone were nice and played carefully.
I did meet one jerk on CoH when I was testing the trial, but that was on the US servers so that didn't surprise me. :P