Interesting… I posted the below from another instance. It showed up at kbin.social, but not on any other lemmy instances. It seems outgoing federation from kbin.social is broken?
Each instance admin will do their own thing. Check the sidebar on the front page of your instance, usually it would be mentioned there.
To support development, click “Join Lemmy” at the bottom of the page, then scroll to the bottom. The devs have several methods to accept donations.