Why not make each of your report ratings cumulate and that can be the user rating... that along with a "joined date" as cali420 suggests would make a good rating system I would think? Does anyone else have an opinion on this? You. Could even do something like make a new users first 20 or 50 votes not count so people wouldn't make fake accounts just to vote for themselves... again I'm throwing this out to see if anyone else has any ideas or anything on it
Another idea to cut down on bogus reports, comments, accounts, can you only allow one username to be added per IPaddress? I'm not exactly sure how all that stuff works but if the same ip address has a bunch of users that seems fishy... esp if theaccounts were all created from the same address....
That sounds like a good idea - I can probably have a joined date added to the username without much of a problem. I'll suggest this and see what can be done with regards a rating system.
The multiple accounts is a tricky situation as a lot of people simply use proxies and change IP's often.