[quote=Raineh Daze]
I'd view it as immensely annoying to have to constantly say "this post didn't happen", due to making assumptions about the behaviour or attitudes of a group of entities that I haven't defined yet. Making assumptions about unknowns because they lack nominal importance would be a bad habit from my point of view, especially if things aren't named yet because they haven't had chance to be introduced.
[/quote]

I mean its more of an adaptive form of RP just like in D&D. You can't control what everyone is going to do you simply find ways to make it work. I had a post apocalyptic pen and paper style RP on the old guild I did like half a year ago. One of the players came to my place of business because he got an npc caught in the crossfire and she was dying. He rolled terribly on his "Not look like a psychopath roll" and I slammed the door in his face and called the police. Him and the GM went at each other with the police stuff, GM loved it and managed to get the character saved anyhow because the authorities got involved. Turns out she was an important character for the story, and was the reason we left town to go on an adventure.