Is it ethical (or reasonable) to judge anyone's character base on how they behave behind closed doors, their private conversations, their past mistakes, etc, if they've grown out of it and now conduct themselves well in public eyes (or at least in professional settings)?

For example, the Jeffrey Marsh situation. His past videos are problematic and sketchy, but now he seems nice and conducts himself well, but it's hard to trust him.<br><br>Or the Mitch and Blake situation. They were problematic and mean in the past, but now they seem like nice person, but it's hard to trust them.<br><br>Or Sargon of Akkad. I don't have to explain what he did.<br><br>What I'm questioning is should we ever trust people who have shown problematic behavior in private or the past, base on how they behave in public (or at least professional settings)?<br><br>&#x200B;<br><br>Edit: The question is not asking if a person can change or if they can be rehabilitated. It's more about whether and when we should trust them.<br><br>Edit 2: It can't always be that "they are in their person, not their past" because people tends to continue their past behaviors.