Nope. I was removed over a single negative trust rating dispute. Of course this is acceptable for people like Vod, but not any one else.
I also got to be the VERY FIRST test case for trust exclusions (amazing the timing of the creation of this "feature"). Theymos excluded me over this, basically in effect putting a permanent cap on my trust ranking and nuking 3 years of hard earned trust, because no matter how many people trust me, Theymos will always rank higher. So if some one who trusts me also trusts the default trust, then I become untrusted. Of course, Theymos does not moderate trust ratings!