Okay; slightly crazy idea here, but since >>14 brought up writing styles, what about using the board software to randomize writing style to a degree?

not to an obnoxious extent just subtly alter capitalization and punctuation and possibly things like linebreaking and line spacing habits to obscure characteristic individual writing styles

I am trying to do it manually in this post. It probably wouldn't solve the problem entirely but it might reduce it and make it harder for cliques to develop in the first place