The hacker posted this because they do not have my wallet, I do. They wanted the original post deleted so that I would have no way of proving ownership of the account. I specifically posted my original signature in the archival thread “so that it couldn’t be deleted.”
Makes sense. We should, then, trust the verified step A of your archival message prior to that of the unverified step B of a supposed private key hack. Given the massive change in prose and post quality, I don't see any reason to grant disbelief to OP.