I like Julius's idea about using a more moderate color. They've actually done tests: red tends to inflame people psychologically (a red room also makes time seem slower, for some reason). And I like Martlet's idea about just stating the rule; obviously you're right, there would have to be other kinds of moderating involved, but maybe that could be the first one? It would solve the partiality problem. And it might even be helpful to keep repeating it if posters continue to ignore it, on the drip-of-water principle. The rules as I've seen them are quite sensible and seem based on a simple "no a**holes" policy. Which I endorse. I used to believe, when I was younger, that lashing out at what was wrong made things better. As time has gone on, I've come to view manners as the glue that makes any civilization possible at all, with people the diverse beings that we are. Manners are just a way of showing good will, imo. My two cents.