That's a problem with signature campaigns, not with the trust system.
You seem to be (and your thread title definitely is) confusing trust system with DT, which is just one pseudo-user in the trust system that is put into users' trust lists by default. So if that's your problem you should try to change that instead of messing with the whole system. Petition theymos to remove DT altogether and/or make some sort of push towards widespread use of custom trust lists. Petition to remove DT members who you think abuse the system. Petition signature campaigns to have a different approach to trust ratings.
that signature campaign was an example of how USELESS the custom trust list is .the problem is indeed with the trust system.
and there is no confusion, as everyone seems to have understood the point and disusing it on point.
it's not a good idea to remove the whole DT altogether as for the most part it is accurate and helpful for all other members, we are not discussing the existence of DT ,but the use case.
as someone who is a DT and their feedback appears by default to every member there has to be a set of rules, if the DT is not happy with the rule and wan't to use the trust system the way they want then they get removed from DT and can still tag people for saying "apple" if they want.