A tracker of members of groups that you do activities with. After an activity, you are able to rate your teammates' skill and attitude on a 1-5 scale, as well as add any note you want. This information will then be shown when hovering over them in the LFG group finder, both when you're applying to groups and when they're applying to you.
Have people leave your key early all the time? Put a note on them and rank them low on attitude. Next time they apply you'll know in advance that they left early the last time.
This addon intentionally does not share information with other people. I don't want this to become some sort of social rating, because I feel that would be bad for the game, I don't know of a way to prevent abuse, and since 1-5 ratings are incredibly subjective.
If you want any other features, please comment below!