One solution, the one I mentioned in that quote, is to dilute DT list heavily. Also the sole purpose of it should be defined strictly. If such a default list structure exists, it should solely be a list of people unlikely to scam others, it should be nothing more, nothing less.
I disagree: I want people with good judgement on DT. Not being a scammer isn't enough. Example: I don't think cryptohunter is a scammer, but he has terrible judgement.