What's the best way to report the abusive modon piefed.social?

This guy is literally messaging people after he gets downvoted because he doesn't like the word "Bro".

"Bro" was literally used as an expression of disbelief.

from atomicpoet @piefed.social

You’re receiving this message because I consider the word “bro” to be offensive, and I noticed you downvoted my request that a commenter avoid using it.

I want to politely ask that you not encourage language or behaviour that could bring toxicity into !fediversenews@piefed.social .

This is a friendly warning. If it happens again, I will have to issue a ban.