

A lot of people as part of sleep paralysis, experience a sort of hallucination of usually a vaguely humanoid demon lurking over you or sitting on your chest. They’re a different experience but there’s some connection between dreams/nightmares and sleep paralysis, and lucid dreamers are somewhat more likely to experience it than most people.
I’m very much in the same boat as OP as a nightmare-enjoyer, I don’t scare easily and kind of enjoy the adrenaline rush when it happens. When I have a nightmare
I’ve only experienced sleep paralysis once, saw my sleep paralysis demon just kind of lurking in the shadows in the corner of the room. Didn’t really scare me, I knew what was going on, I just kind of sat there (not that I had much choice in that I suppose) and enjoyed the experience for what it was. Then as my ability to move returned and the demon just kind of faded into the shadows I pretty much just thought (that was cool) rolled over and went back to sleep.
My demon was also kind of boring, just a vaguely human-shaped patch of shadows that kind of stood out from the rest of the shadows in the room, and it pretty much just stood there watching me.
You got a typo for mastodon (mastadon)
I don’t really have any input on how it is to self-host, but I’ve been playing around with friendica a bit and I think that has a lot of potential and may be worth mentioning. I think it has a lot of potential as almost a unified fediverse portal in addition to its obvious purpose of being a Facebook alternative, from what I’ve seen it seems to play pretty nicely with a lot of other fediverse services, and also supports RSS feeds
It needs some polishing, I think the default UI is pretty wonky, but there’s a lot of functionality there if you can be bothered to figure it out.