I’m still kinda new to lemmy, but it sounds like every post on all your communities get sent to your instance? And maybe every comment?

That’s probably fine for now, but when happens when one of the communities you follow gets a ton of users? I imagine you’d end up having to scale your self-hosted server even though it’s just you consuming the content?

That doesn’t seem sustainable. Not knocking your idea to self-host, more concerned with the scalability of lemmy