So if I steal your money, you threaten to dox me if I don't return it, and I make a post saying "Don't worry, I'm working on it, and, BTW, this is really me!" you wouldn't dox me?
In such case, yes, I would reveal personal information so nobody would deal with that person again, as that person would most likely scam again (or would at least stop scamming now that their personal information is known). But that's not the case we're seeing here neither what you propose would really help right now.