Not only have I never had a problem with him, I've literally never seen him have a problem with anyone or vice versa.
I looked back in his modlog, and pretty much what I found was silliness. I've said before, I really think there are people on Lemmy trying to stir up absurd drama for reasons of their own to use to attack mods especially that they don't like and get others to bully them for being "wrong" in some kind of artificial way on some kind of various hot-button issue. This looks 100% like that.
Anyone who feels like this dude is wrong, go look at his modlog, make your own decision.