Quite a few of those people are on my trust list. Most I have traded substantially with but not on bitcointalk. While some of the feedback I left recently is new - the trust list I have has not altered much. The recent feedback I have left was for DTs that I believe are doing a great job and should continue to remain DTs under the new system. (Were already on my trust list due to default trust).
However if any DTs are concerned about the conduct of anyone on my trust list in future I will happily remove them.
I would consider taking a look at your trust list again now that you are on DT1, as it now has a significant effect. The trust list is for people whom you trust to leave accurate trust feedback and maintain good trust lists, and not for people who you've traded with (you can leave them a positive trust feedback for that). There's quite a few people on your list who are very inactive on Bitcointalk/don't leave trust feedback, and I would consider removing them as there is not much point to them being on DT2.
You don't have to leave someone positive feedback to add them to your trust list, and you don't have to add someone to your trust list to leave positive feedback to them. I think you are mixing the two things up.