if more DT members neg-trust the topic starter than positive-trust him.
FINALLY ! although i was "hoping" to see something similar to what a logged in user would see, simply because scammers can still advertise their scam b.s in other people's topic, in fact if such behaviour is increased then it will be harder to spot them now than before.
but i can't complain much, that is a good start.
That could happen but it's a much less serious problem. The main problem is when the scammers themselves create self-moderated and/or locked threads so nobody can post any warnings. This is practically solved with the announced change.
If a scammer posts on someone else's thread then the creator of that thread or anybody else can post a warning.
I too would prefer to see a warning next to every post made by a known scammer but I don't think it's a considerable issue.