Quote from trefoil:
He's a psycho. Just put him on ignore.
Putting him, Jack Hershey, and the stray Nazis who seem to gravitate here for some weird reason on ignore will allow you to mostly be OK. (simple rule: if the username ends in 88*, just put the loser on ignore automatically. Instantly upgrades the user experience around here.) Unfortunately, the determined loonies keep getting new aliases, which makes it a Sisyphean task sometimes.
C'est la guerre...
*88 = HH, the initials of a certain slogan the traitorous scumbags favor.