I suggest servers with increasing amounts to duel.
First server may be 100 tc, next 500, then 2500 and be maximized at 20k or so.
There would be Qi restrictions to assure new players don't wander in and lose everything. Oh and a bright red motd assuring people know what kind of server it is.
A lot goes on in private duel servers. Perhaps people can be contained with this idea.