This is what i thought about something that can improve the trust system.
I got the idea from movie “world war z” where there is a board of people in a country who think there will be no zombie apocalypse and there is one person assigned to think otherwise and they ended up making a wall to isolate the country. So, i guess it is a good thing if some dt want to leave a tag to someone, there must be a counter from other dt who think otherwise, because dt member job is not just giving negative trust, but also a positive trust, so in a case, we need two different perspective. The bad thing for this idea is, there will be a lot of work to decide some cases.
I got the idea with spammer tagged as orange and scammer tagged as red from this thread, and for spammer, i guess it is good to add a time penalty, and after the penalty is over and they still spam, the penalty time will be lnger for him.
And i suggest the green dt member and the process of decision making is in a secret time and place, like in a PM not on a new thread or something public.