Someone mentioned a "duel" option... allowing players to enter PvP. However, weak players would never accept or it would be abused to "feed" more powerful accounts.
My recommendation would be to remove the limit, but only win/lose reputation. Basically, no funds could be transferred.
However, that would certainly anger predatory account holders. They've spent a lot of time (and in some cases money) to build a shark-like account.
It should make testers happy though. You could test all day long, if that's what you wanted to do.
Basically, this is a difficult situation where Tynon wants to balance entertaining play with motivational activities that will coax real money from the membership.
KA