What does threads federating even mean for Lemmy? They’re a mastodon type platform they can’t see posts, they can’t follow communities can they? I understand mastodon and Lemmy are activity pub in the background and theoretically you can susbscribe each way but how do you actually do that and what does it look like.

How do I follow my mastodon account from here and vice versa?

I think this is a moot argument for now as meta aren’t making a reddit/Lemmy type platform.