I disagree with your conclusion that 4 alternative accounts are connected. In the future, I advise you to disassemble accounts more carefully so as not to expose the accounts of innocent people to an undeserved reputation.
You found just one match on the social network https://facebook.com/cryptoreflector666 But why didn't you check the entire history of this account? He stole bounty reports from many accounts.
Next, the account Does the same. It uses someone else's Telegram username data. He has an alternate account. But here I have a little doubt, based on his behavior on the forum.