It definitely feels a bit strange and potentially alarming, but after reading through that whole thread he ultimately seems like a sincere person doing work that he thinks matters, now getting dogpiled for it.
The problem is that he's forcing his ways on others. If we're identifying an aggressor here, it's him. The project maintainers are the victims.
Honestly, I can't understand the intent behind such a defensive rebuttal to the criticism of his actions.