This change may affect how those negatives are viewed and countered. I'm guessing that more passive-aggressive countering (via exclusions) will be possible so anyone with a lemon fetish will probably not last long.
could be even worse now, what if someone had a counter feedback and then the DT who gave him the negative trust is no longer a DT " next month" that person will be left with only positive DT trust, same goes the other way around.
it will be a lot of work of removing counter trust.
i am willing to bet the horse that a mess of "complains" on Meta and Reputation is coming up real soon.