If I can add to this list because you listed most people I would mention.
Calum (videos about interesting topics and crazy one off machines, giant land trains, Antarctic exploring vehicles etc).
Blondie Hacks (machining but focused on how to do everything and how to learn machining mostly with limited tooling, she is currently building a live stream model loco).
Aging Wheels (videos about quirky old cars and related projects).
I used to use Plex running in an LXC in Proxmox but when I switched to Jellyfin I did it through docker and I haven’t looked back. The setup was easier, maintenance is easier (updates can be scripted to be automatic really easily) and it works in a reliable predictable way like the rest of my docker containers.
I just have a VM in Proxmox that has docker installed and that contains all of my containers.
I think the ideal solution would be content warnings like Mastodon has, maybe these convert to NSFW posts for activityPub but within Lemmy surely they can work the way intended.
To piggyback off this, hobby machining in general. You can buy a small lathe pretty cheap but add some decent tooling and oh you need a very fancy tool you don’t have? Hand over more cash. You want to make a part that won’t fit in your small beginner lathe? Time to fork out for a bigger more expensive one. Oh a mill would be better for that part? Those kidneys could get a basic mill. Oh you need more fancy tooling for the mill now…