I think the most annoying people in Forums:

“Well I use Debian, and I use only native packages! I update manually because I need to resolve those dependency problems! Go to hell with your Flatpaks and telemitry, I want freedom! Also I will never use Wayland because Mate doesn’t support it”

People thinking they can give advice, while they are clearly using outdated software, not scaleable maintenance effords, etc.

I had this in the KDE forum. Literally 2 dudes telling me no system could auto update, while my system does, today.