First of all, sorry if this magazine is not the correct place for such questions.
I "migrated" my small community over from kbin.social since, well, it's dead. The community is Greece (https://fedia.io/m/Greece) and users from other instances such as lemmy.world etc don't seem able to see any of my posts.
I was wondering if the language settings in a user's profile meant that they cannot see your posts. I enabled Greek but it doesn't seem to have made any difference.
So, I created a lemmy.world account just to subscribe and check if the federation now works. It works, but only for new posts, which is not ideal either. Hopefully federation can be fixed for older posts as well (I know that comments need someone from your instance to have subscribed to that community, but posts should always be visible to others)
Which lemmy instance were you not seeing it on? One of the challenges with all fediverse applications (mbin, lemmy, mastodon, etc) is that posts and comments don’t federate with other instances unless someone on the other instance follows the person or the magazine.
I do not believe existing posts and comments will federate to a different instance after someone on that instance subscribes to the magazine. Only new posts and comments will.
I see. Too bad, but hopefully this is something that may get fixed in a future ActivityPub protocol update (don't know if it is sth the applications can fix themselves)