I can take action against him. I can act like a dick when I meet him. I can bad mouth him to my friends and family. I can refuse to hire him. There are plenty of legal things I can do to let this person know exactly what I think of them. And I will do that if I have the opportunity. He may have paid his debt to society, but he was still a spammer. Just like I would not necessarily trust a murderer who served 30 years, I wouldn't trust this guy. If he wants folks to trust him, he will have to earn it. 4 years in prison is not earning respect. He has to do that just to get back to the starting point. Now that he is there, he still have to work against his years of abuse. I, for one, won't be in any hurry to help him do that. He is a spammer, regardless of his time in jail. I will call him an asshole to his face and kick him out of my house. I don't want spammers thinking that they can do their thing, spend a few years incarcerated, and then everything will be fine. I want them to think that nobody will ever like them or welcome them and that they've ruined their life by choosing to spam. Then they can serve as a warning to others.