Robert Morein said:

Turns out it's pretty easy to intimidate Shovels into scurrying off into
the shadows. After my last post to him, in which I offered my usual
condescension and mockery, he retreated into email. The little darling
sent me a screed full of pop-psych gibberings, demands for validation
("Try my tweak! Please!"), and assorted insults thrown at me and others.
He also warned me that I would never ever receive another public
response from him. I'm being punished, you see.

So all you have to do to get him to ignore your posts is do what I did.
Have fun!

George, apologies work wonders.
Try it.

Are you saying I owe you an apology?

It can even be a new form of mockery

The bushel of insults Shovels emailed me included one directed at you.