That's what enables a lot of sexual predators. Proof is very hard to come by in cases of sexual harassment or even in cases of rape if the victim doesn't go to the police right away. So it boils down to a situation of "your word against mine" most of time.
Doesnt matter, if you have no proof, no evidence, no witnesses, you should be prepared to be sued back because we have a lot of cases where people have made accusations only to destroy the person life. Also a sexual offense once becomes public already destroyed your life even if it is 100% a lie. Its terrible that people use it as a way to silence others, but it should be reason to destroy someone without proof. So in my opinion, if you are innocent, sue back agressively.
I mean, doesn't that then just destroy the life of the victim (doubly so) if they can't prove anything?
In an ideal world the accusations alone wouldn't actually ruin anybody. They wouldn't lose their job or anything until it had actually been proven. But there would still be a question mark over them, which if they never did anything wrong shouldn't be too much of an issue, but if they did should make it much harder for them to do anything again and much more likely to get caught too.
If that's how it worked then false accusations wouldn't really matter, but legit accusations whether backed up by proof or not, would still be worthwhile.