Taylor,
We actually have a major revision to the rating system in our pipeline. We intend to replace the numeric scale with a simple thumbs up/thumbs down sort of system. We also plan to extend ratings beyond Articles to include Events and maybe even Members.
So, we probably will not be creating any 'edit my rating' functionality in the short term. BUT - let me know which article you rated and I will make an adjustment to the score, just for you ;)
Andrew Lippert CTO - Biznik

