To say that someone should not have trading experience to be in the DefaultTrust network is ridiculous. If they have no experience trading then what would they be doing looking at marketplace threads where the scams are going to be taking place?
No, not having trading experience shouldn't be and is not a disqualification from being on DT.
Yep, how come trust is developed only by doing trade? I used to trust Quickseller once, not because he had done a lot of trades, but because he was great in busting out scams.