For some people on the list, it appears there is an effort to coerce people into distrusting them. For others, it appears there is a wide consensus for them to not be on DT, but they are anyway because a very small number of people.
The whole idea of having trust exclusions is stupid and gives people cover for having someone untrustworthy in their trust list. If someone is on Alices trust list who is untrustworthy, then Alice should remove that untrustworthy person and if she refuses, Alice has no business being on anyones trust list.