This is without doubt the case.

There will always be concerns here where you have systems of control that are open to abuse where that abuse can result in financial reward. I guess just for now dt and every member needs to be a diligent as possible. The more DT the more likely you may consider it to catch them or notice it and  it does make it harder to collude successfully, but then you have more persons to watch and higher odds that some may fall into temptation. As I have said i believe an anonymous forum is a difficult one for decentralised control sytems even with very stringent criteria and a mandate (although that would vastly improve the reliability and credibility of the ratings)

Perhaps better to just flash red under all accounts so people are terrified to trade without DDE or something similar. Something like beware this person could well be a scammer.

Have their been any big scams conducted from accounts with LOTS of DT green in the past? if not then perhaps not as worrying as it may seem although certainly something to think about.