somethingedgey said:
Feedback is generally done by the mods, there are 4 types of feedback
1. Positive, you are actively doing good for the e6 community (i think getting that famed green bar is the best thing that can happen here)
2.neutral, most common one, generally used for small warnings by not following rules
3.negative, means you messed up big time by repeatidly getting the same neutral warnings
4.ban or "suspention", should be self explanatory

Anyone can report anyone for a commendation (or negative behavior). There's a link on the top bar on profiles that says Report/Commend. It's somewhat confusingly named but it can absolutely be used for positive reports. I've done that several times now.

I also don't think being promoted to privileged is based on that, more based on trust by staff, but I am not staff and don't speak for them.