If there is no attempt in debunking them or demonstrating they are untrue, then you must be able to recognize that looks rather bad and actually seems strange that they make up a LARGE portion of most vaunted trust positions on the entire forum??
When something is posted in Meta rather than reputation. Accusations that have been discussed before numerous times. When the thread starts with a poll titled The "Official Dirty Turds Poll - Which DT needs flushing first ?" people are unlikely to take the content seriously. Such thread is likely to be seen with amusement and ridicule.
Accusations regarding reputation and scams have specific boards on this forum . It prevents it being repeated over and over again.
Everyone at some stage has had some sort of accusation leveled against them and it is only fair that it is in the format that is accepted on the reputation or scam boards.
There is a tendency to rehash the same accusations over and over again in multiple threads on various boards when the person making the accusation doesn't get the desired results.
Each DT can only be responsible for their own decisions regarding trust. Getting DT's to agree on something unanimously is like herding cats.
None of those on the OP list I would personally place a flag or tag on. Some people I trust but do not necessarily agree with their conduct - they neither get my trust list nor do I tag them. I only take responsibility for those I specifically trust. As DT1 or DT2 there is no specific duty to tag people and there has to be a level of forgiveness for individual errors in judgement.
And the trust system is only going to work if there's some level of forgiveness and de-escalation.
Owlcatz helped me when I was new to the forum. He said some things that ended up being very helpful in the long run. It was via PM.
They could have easily ignored me as a noob but instead helped a stranger for no benefit or reward.