If you’re seeing “subscribe pending” on any communities it’s a bug, you’re still subscribed.
There isn’t an approval process to subscribe to communities - anyone with a Lemmy account can subscribe. What are you seeing that looks like you need approval?
There can be an approval process for signing up to an instance/server, though.
I think they’re referring the Subscribe Pending prompt that some communities give when trying to subscribe.
I’ve noticed it myself and actually have been wondering the same thing
You don’t. I’m not even sure that’s an option yet.
Do you mean creating an account on an instance?
You don’t. The server just can only handle a finite amount of actions per refresh. If you wait like 10-15 seconds your subscribe will go through. It’s got nothing to do with approvals.