There’s a lot of consternation in the fediverse lately about instances blocking each other, admins fighting, blocklists, and the like. If you’re on an instance that blocks other communities you want to participate in, politely ask your moderators/administrators to reconsider. If they disagree, I recommend moving to a different instance rather than a prolonged argument. Some administrators prefer erring on the side of over blocking and protecting their user base than being permissive and expose their userbase to riff raff or, in some instances, just to avoid the appearance of being too permissive to other instances.
Life is short. Find an instance that works for you.
(Edit: and the converse is true - if your instance is overly permissive and you are regularly being harassed or otherwise bothered and your moderators aren’t responding as you expect, find another instance that is better aligned to your needs. Life is still too short. Find an instance that works for you)
