I think large part of that is user names here are very small and anonymous. As opposed to twitter and the old style phpBB forums where everybody has a much more

I think large part of that is user names here are very small and anonymous. As opposed to twitter and the old style phpBB forums where everybody has a much more prominent and recognizable avatar. There, you (subconsciously) judge by the person, before reading the content. Here, I hardly ever even read who I am replying to.