I never got much motivation to review, I still don't have it either. Most of the time I'm just lazy and trying to focus on getting more points. But also sometimes I have some problems with coming up with a decent review, I know nothing about making flash so I can't really help with some of the more advanced things on how to improve someones work.
Also have trouble trying not to overdo it and rant on, or just even coming up with a long enough review.
Oh well, once I hit sup commander one of these days, I might rejoin the review request club, and also try to focus on reviewing stuff more than just voting and moving on to the next flash.
Who knows, really.