The scams happened before I (or most other users) even joined the forum. I don't trust him, but I also don't feel the need to add more negative tags to the pile.
First sentence is true. However, I would have expected to see more negative feedbacks from DT members in his case... His current Trust score, for stealing at least 4100 BTC is -13. As comparison, figmentofmyass, for cheating CM campaign for 3 years (where he lurked way fewer BTC that TradingFortress), has a Trust score very close to TradingFortress': -12. Yet, the prejudice made by the lattest is way greater that the one made by figmentofmyass...
I'm somewhat with LoyceV in this: the scams have happened very far in the past and probably before the trust system has become this important. Maybe I'm wrong, but I expect back those days one gave trust rating only if he had direct deal with the other person/account.
And most of the current active people don't know much about that, don't care that much about that... see it as "long gone". Not good, but this does happen. Politics and elections work on a similar principle, exactly because... as somebody famous

said:
Memory is a funny thing, though
What I don't agree with LoyceV is about not "adding more to the pile". I've just added one more to the pile, with link to this topic.