Just having a positive side to it would be better, because really you don't want a negative feeling against you. That way people can't feel bad about them selfs and be over hated. Really you can only have a few people that respect you, or you can have a whole army of people behind you. I expect though a time limit would have to be on there, so you can only give +1 Rep. per 24hours. Maybe limit to how many you can give out a day, like 10? Oh, but the time limit is in place per individual player.