682
Top 50 defederated instances
(lemmy.basedcount.com)
A community to talk about the Fediverse and all it's related services using ActivityPub (Mastodon, Lemmy, KBin, etc).
If you wanted to get help with moderating your own community then head over to !moderators@lemmy.world!
Learn more at these websites: Join The Fediverse Wiki, Fediverse.info, Wikipedia Page, The Federation Info (Stats), FediDB (Stats), Sub Rehab (Reddit Migration), Search Lemmy
SDF is not one of them
Another example, from lemmy.ml
Hypothetically it does, they just don't block any instances, so it's empty. They are unlikely to start outside of extreme circumstances.
Likewise for their Mastodon instance, which has been around for a long while.