I created a community on this server /c/youtube after confirming that it did not currently exist (yes, I selected “all” not just “local”).
However, when searching on to Lemmy.ml instance I am seeing my community does not exist and there is already a YouTube community existing on there.
I was under the impression that communities were shared across servers or does it work another way?
For a community to be visible, any 1 member of the instance must have searched about the community on that instance (after which it’ll get stored in local db and become visible to everyone else).
No one must have searched c/youtube of lemmy.ml here and vice versa.
I’d still recommend you make your own c/youtube if you’re interested though. Many communities on lemmy.ml were made earlier and have inactive mods so this could become the primary and main youtube community.