Here's my feedback regarding the Reputation System.
I think you should be able to go positive or negative. In able to get people more interested in the Reputation System, we could actually add something like a cosmetic set for the positive or negative path. Positive should look like a kind of Police Cosmetic set and Negative should look like a rogue looking set. These two are just ideas. If this goes through, we could discuss on how exactly it should look like.
A leaderboard regarding Reputation would be nice but I know this requires quite some work. So people have some kind of competition and something to work forward to. I think many people would love to see this.