We should never forget his mistakes but at the same time we should also take in consideration the good things hes done before.
It's not a pro/con list where you check which side has the heavier weight.
Giving someone a pass because they have done X in the past is not a very wise idea, especially in crypto.Exactly.
Just because the scammer Dean Nolan returned the bankroll BTC to investors in 2016 does not make him a saint. He returned something that he did not own. If he did not return the BTC he would be unable to have the ICO and would at some point be in jail. Simple.
Scammer Dean Nolan did it because he wanted to have the 2017 ICO to line his own pockets.