sure, the real root problem is whoever added you to DT and i'd like to remove them from my trust network too. but i don't think that information is public. please correct me if i'm wrong.
It absolutely is public. If you temporarily change your trust list to exclusively DefaultTrust then you can enter the hierarchal view of the depth and investigate who excluded/included whom.
In fact, all trust inclusions/exclusions are public and in a document:
https://bitcointalk.org/trust.txt.xzI made it so that'll update every Saturday at 02:52 UTC.
-> is "trusts", and
-/> is "excludes". Only people with at least 1 post are included. If someone has never touched their trust list, then their trust in DefaultTrust is not shown.