Agreed. I was just saying to someone that I know there are some crazy writers who do use ALL of their characters to attack one writer or one character OR one character to attack all of another's characters, but those seem to be few and far between compared to the people who just assume you're one of those writers after some IC conflict. It's bad on both parts and line-blurring on both parts.
But it's now why I tend to not talk to people OOC, and I tend not to join games where everyone knows who everyone plays. That way if IC conflict does happen, my ignorance is my bliss. I don't even know you OOC; how can I have a problem with you? It's all IC driven.