I suggest that it be made possible to rate someone's rating. Don't like that someone just rated you Creative? Well now you can strike back by giving their rating a Creative rating right back! This is just one example of how this could be used, of course. Here's another: _TANSTAAFL posts something Someone rates it Useful I rate that rating Informative Someone rates my rating Friendly ...into, Infinity!
Ratings do not come with the forum directly and have very minor customization (i.e. removing one rating)... I highly doubt this is possible and I think it would just cause problems.
If I rate someone's post Creative, then they rate my Creative rating with a Creative rating... well hell, I want to be able to rate their rating about my rating. It'd only be fair