What are "known instances" for?


#1

and what does “resubscribe” do? Is there documentation for this somewhere I’m missing?


#2

The button is to re-subscribe to all accounts from a domain.

https://github.com/tootsuite/mastodon/pull/4285


#3

Is there documentation on this? I dont know what a subscription is.


#4

I don’t know.

A subscription is federation to a server’s API for delivering notifications and content.