I'm glad to see negative feedback is removed from several profiles who posted here.
We should try and leave negative trust only if we strongly believe someone has scammed or is trying to do so, especially after this welcomed change:
Logged-out users will now see a warning in trust-enabled sections if more DT members neg-trust the topic starter than positive-trust him.
This increases the responsibility of DT members not to give negative trust for stupid reasons, but only for things that cause you to believe that the person is a scammer.
Leaving neutral trust or ~excluding someone from the trust list is one thing, but negative trust must be reserved to fight scammers, not for ego fights or misunderstandings.
Edit: Please note I'm not supporting one or the other party. Please don't try to make it look like I do. I want to be as far away from this senseless discussion as possible.
All I'm saying is this fight (as well as a lot of other recent discussions on Meta and Reputation) is not about scams so no negative trust is deserved.