Well, I knew it would be controversial when I turned it back on, but we need to give this a fair shake. The rating system was trashed the last time in part because some ratings were changed inappropriately. That won't happen this time. Yes, there will be "abuse" by some users. Once the novelty wears off, that will be a small percentage of the rating system, and overshadowed by thoughtful, correct usage. You can only rate a user every 5 hours, so it's not like a single person can skew another's rating too seriously.
If a user is a straight talker with lots of experience and no desire to filter then I expect the majority will appreciate that and show as much in their rating. I suspect someone like that will have a lot of +'s and a lot of -'s but if they know what they're taking about, the positives will win out.
On the other hand, a smack talking poser will be shot down very quickly. This has two effects: One, others will be able to see right away that advice from this user should be treated with extreme caution. Secondly, the poser will see their credibility taking a nose dive and may rethink their approach.
So not only will users be able to tell "at a glance" where a user stands (knowing of course that a good or bad rating is simply one component of a large composite judgment), but it is instant community based feedback on when a user is doing well or doing poorly. Once again, community is the key word here. If the system is to work, it's up to us to drop kudos when someone makes a good post, and drop the hammer when they're off the mark. By enabling this feature, we have put a bit of power into the hands of every user here. I'm confident we can use this new ability to make things better, not worse.
Cheers
Mike