There is nothing wrong with how DefaultTrust works at the moment in my opinion. The fact that DT1 is now accountable means that someone who is adding members to DT2 who should not be added can be veto'ed out of DT1 by users with sufficient merit. I think that system works completely fine.

Thanks for mentioning DefaultTrust though, it reminded me to go through and fix up my trust list

re: what o_e_l_e_o said: I like that idea but that would massively shrink the size of DT2. I guess that's not necessarily a bad thing?