His demand of not using his existing work for AI training is nonsense. Because the entire article is stated:
> Portions of this content are ©1998–2025 by individual mozilla.org contributors. Content available under a Creative Commons license.
Didn't he agree on that?
So, this contributor revealed he doesn't understand the license his work is published under. As such, Mozilla must refuse his contribution because he don't understand the idea behind Creative Commons license. His wish granted I guess.