But regardless if founder or employee, I don't see why we should lie about people misbehaving. If I know someone is a bad apple, I am not going to lie about it - especially if I can prevent someone I care about going through the same ordeal. I also don't know why I should change my mind about someone just because some time has passed. People don't change.
It's frankly pretty appalling that I have to spell this out to you. I suppose you didn't think much of the Me Too movement? While clearly not on the same scale, the fundamental societal mechanics that justify outing perpetrators of sexual harassment are the same ones that justify outing people who break contracts. The society would be a much better place if people knew that karma is real.