The OP doesn't deserve red trust. Ignore - fine. Excluding from trust lists - probably advisable. Red trust due to posting in Vispilio's thread? No. That looks like red trust for an opinion.
Agreed. I'm not saying JollyGood is wrong in what he's saying (I actually don't know the facts so I don't have an opinion) but ignoring and/or excluding seem like better options for him to take.
Also, I don't think this issue reflects on DT as a whole. You don't see a lot of negs being left for differing opinions these days, and you're seeing DT members disagree with another DT member for doing that right here.
Looks like this has been resolved, which is surprising to me but refreshing.