itrader was the old feedback module we used on vB4. we still have the old feedback database, but there's no clean feedback module for SMF that we like, and even then, to recover that data we would have to put effort into translating between the table schemas.
heatware.com is the standard feedback website for pc enthusiast websites (eg, OCN, anandtech, hardforum, etc.). i am absolutely sure we could get added to the drop-down (in fact, i'm going to go ahead and request that now), the question is whether you, the users, have a concrete reason why we should prioritize building our own proprietary trader feedback system.
also, fyi, we did _not_ police the old itrader system (in fact in a year or two worth of data we had only a handful of non-positive feedbacks, period)