What’s that mean, “self host”?

This is why I started to hate reddit, even before the big API fiasco. It’s clear all that was making it to the front page was the same liberal-pandering bullshit… I don’t mind seeing a little shad thrown at one side or the other every now and then, but when it’s every 5 posts and it’s always just 1 sides opinion it’s incredibly annoying! I was already looking for other sources of entertainment. I’m kinda glad I found Lemmy. It’s been a really cool experience so far.