Just to add onto this also. This is why I considered giving out payments, although that also has its drawbacks. Honestly, I couldn't care what the motives behind someone reporting is as long as they're not gaming the system. Therefore, I don't mind offering rewards up for users that are using the system properly, but as soon as payment is introduced I know that it will be gamed to no ends. I'm not a big fan of handing out merits for reporting, although I wouldn't critique anyone doing it as there's far worse things they could be wasted on.