I'm honored to be DT1 too! I'll re-check my trust list again.

I'd like to propose a change to discourage DT1 members from adding users to DT2 just to improve their own trust:
If a DT2 member is added only by one DT1 user and the former left positive trust to the later then it should not appear as trusted on the DT1's profile.

So in practice the DT1's default trust should not be affected by changes made by that DT1 user to their trust list.