This happened to me a long time ago but I remember this one experience I had with a roleplay.  I think it was when I using gaia forums to roleplay, anyway I decided to join this roleplay.  The roleplay had two sides to it, I decided to go with the 'bad' side in the roleplay cause I like to try to even things out.

So I put all this effort into my character, creating their powers to make them a viable threat, etc.  Then later on there was this weird discussion about certain character powers and basically these two people were bragging about how OP their characters were.  I got into the discussion and they basically denounced my character and how their powers would easily beat mine and how they were much better at writing then I was.  I had never seen two such elitist fruitcakes in my entire roleplaying career.

Alright so maybe I was more the high-casual level rather than advanced but they essentially attacked me, my character, and my writing for no good reason.  Never did get to the point where that particular character would fight with theirs, but that was probably for the best as they probably would have power-played the crap out of that fight.

I'm pretty sure neither of them were the maker either...it was just sad.