I'm seeing a "Rate Thread" that I don't think was there before - Excellent, Good, Average, Bad, Terrible - and I've rated a few threads but don't see any results at this point. (Perhaps a minimum number of ratings are needed?)

Is this another experiment akin to the like/helpful idea? If so, this may alleviate some of the wailing about rating individual posts, since you'd be rating the entire thread, not a particular post.