[Combo_mybb_import25747]

I think the reputation system can help with trust. End of the day, you gain reputation by being trusted. Members repute you for who you are. If you come to the forum and just want to gain something for nothing then I think you should leave negative reputation and inform the user you will remove it at a later date if he/she improved their activity.

I think you did the right thing. I mean some people say reputation is just a number but a lot of people use that as their trust rating so it is important especially forums with a marketplace.