Well, until they fix the SessionID security hole in the launcher... People get session hacked like crazy. When they fix that and ban/restore all those hacked accounts to their proper owners there is no reliable way to hurt RMT.

Imo they should make the market level 30 instead of 20. Once they fix the sesssion security hole and get rid of all those level 50 rmt's RMT will have to level to 30 to use the Market, which slows them down a great deal. This forces them to have dedicated market accounts and when they get banned they have to relevel to 30. And any accounts interacting with that level 30 will also get banned, that slows them down a lot already.

The reason RMT is so crazy right now is that all you need to hack someone is their Session ID which can be obtained with a java applet people run on Fan Sites not knowing any better (that are RMT sites in disguise).