As long as the threat hangs in the air, one can hardly expect the threatened party to "let it go".  Isn't that...shall we say...obvious?  However, in the interest of not bearing false witness, not to mention avoiding the rule against lying, perhaps the best approach would be to forward all nasty and snarky posts of the past week, including your own?  Please do understand, this is not harassment, but genuine attempt to correct an erring brother in Christ, whose behavior, I fear, discredits the Religion...sigh...