red > green
It doesn't mean anything btw, just that you've upset some folk(s), if they're decent, they'll post why, if not, they'll just rep negatively in anonymity because they are cowards and that's the sole thing they can do. So really, don't sweat it, people worth anything will consider the content of your post and not the rep, which as previously stated can be easily manipulated.
Posts 664 ... wow... you should already know that by now. So I've just left you a negative rep.