Is there a reason some communities from federated instances are not available here? For example, !aigen@lemmynsfw.com cannot be found, but is visible from another instance.
Can individual communities on another instance by blocked and if so, is it possible which communities are?
Yes, they weren't in line with what I want pornlemmy to represent.
Yes, but unfortunately
as far as I know, there is no way for the users to get a list of blocked communities.