GNOME and KDE both have a built-in nightlight feature (reducing blue light after a certain time). Not seen one that will turn the screen greyscale myself.
You've just reminded me of something that used to happen around 20 years ago on smaller forums which is "forum affiliates", where two or more forums with overlapping discussion interests would simply agree to link to each other to drive traffic.
I'm not sure how common that ever was or if it just happened with the types of forums I would visit, but it worked and there's nothing really similar in the Fediverse. Normally as a rule I tend towards the "stay separate" camp for communities - but something to boost visibility of related communities might at least help with the perceived drawbacks.
I don't think anyone is offended or "getting all triggered" (projection, maybe?), I think OP is annoyed that the community isn't properly moderated (and I share that annoyance). Moderator action only became "oppressive" when we had centralised social media; in the old days of forums if you didn't like the moderators you just made your own forum, you'd complain about the old moderators but to complain about "oppression" would be laughable because they can have their website and you can have yours. Thankfully both OP and I have that option - if what the people here want is low-quality off-topic crap then that's what they can have, I could make my own mildly infuriating if I cared enough, and if others wanted they could go there - it's totally democratic.
I think it's probably the most important piece of information to have when choosing a server.
While a lot of people have said "it can be used for harassment", I've not seen any information yet on how that could be. On the contrary, I think being open and up-front about federation policies is important for a healthy community - it avoids arguments about going behind people's backs.
Never heard of a box cutter.