I cannot agree with what suchmoon stated though you agreed with him about "Don't neg-trust trolls so that people don't need to try to clean up your mess."

What suchmoon is saying (and you agreed to that view) is that in your opinions it is acceptable for users to leave positive counter-feedback for those receiving inappropriate negative trust.

Using positive counter-feedbacks is a completely inappropriate use of the trust system and from my perspective it has no justification at all because if anything a neutral rating can suffice.