I'm a(n extremely) small time streamer but with decades of content (plus more as I stream on both PeerTube and Twitch) that I'm slowly moving over to my own self-hosted PeerTube instance. I can't say I expected any views at all, but what I have gotten so far is just a lot of bot spam comments. I can't imagine that's something most creators want to deal with.
Is the problem that I'm self-hosting and having to moderate that on my own? Probably. But it doesn't paint a great picture of the platform at large so far.
I have the same firstname@lastna.me setup as well. It's honestly pretty nice.