While he can get petty when talking about memory safety, he was never obsessed by Zig in any way, his tweet that ended up with Loris calling him “Coomer” among other names was a response to someone mentioning that Zig wasn't memory safe. I've never seen him mentioning Zig first on Twitter.

And on the other hand you have Loris, obsessed so much by Rust he can't help spawning in Rust threads or write dumb anti-rust rants on his blog…

(In fairness, I must say that Loris isn't even the worst offender, that title goes to M. Presler, who keeps spawning every Rust thread telling everyone who want to hear it that Zig is much better, despite having seemingly no stakes in the game (being a Java guy and having no public Zig contribution or even documented use of the langage). Sounds like the “Rust evangelical strike force” emotionally hurt a bunch of people so much they became lifetime haters).