Interestingly, the research I've been able to find says that men who have been promiscuous before marriage are more likely to cheat than men who have not; but women who have been promiscuous before marriage are less likely to cheat than women who have not. Perhaps that speaks to different motivations in men and women (in general) for both promiscuity and adultery.
However... I agree with
@2PhiloVoid that there might be quite a range of negative consequences. But we don't need to add to them by effectively punishing that person in an ongoing way.
Why abstain from any sin? Or to put that another way, if the only reason for not sinning is that your community will punish you for sinning, isn't that a problem in and of itself?
NB: Not what I actually said.
Also, I didn't say "promiscuity is fine."
Look, each person has to get to know another person, find out their character, their gifts and strengths, their flaws and weaknesses, and make a call about whether that person looks like a good life partner. I think the key issue there is not about "what was their biggest sin?" but "how much is whatever their sins have been, either truly in the past, or something that doesn't prevent us from building a loving life partnership?"