Play-by-Post Roleplaying within a Message Board medium invites toxicity in general. It is a consequence of being unless the website, in particular, is niche. Cliques create feuds and feuds create perceptions and perceptions create drama. It isn't even specific to roleplaying. In terms of RPG, it depends on the sub-community you are in and what the circumstances are. I've been involved in some toxic ass shit on this website and I own up to that.

Arena is not the sole guilty "whe whe drama toxicity" party on RPG. It just is everyone's favorite whipping boy after Free.