Personally, I would love to have my CR in colour. I see no problem with spammy ranks, although I don't agree with the banned user ranks.

I would have to disagree with Jase on the fact that colour ranks make the forum look messy. I can't see how it makes that much of a difference. I'd have mine in bright pink if I could. And if it winds Jase up, all the better. Lol. *Prepares for the grilling to commence* xP