I don't think we would use it on dataterm.digital. We don't on corteximplant.com
There exist ActivityPub relays that are basically already filled indexes that you can connect to a Mastodon instance. This is what it says in the admin settings:
A federation relay is an intermediary server that exchanges large volumes of public posts between servers that subscribe and publish to it. It can help small and medium servers discover content from the fediverse, which would otherwise require local users manually following other people on remote servers.
Every instance has a list of instances that it is federated with (that the server sees). Feddit.de is a bigger instance than dataterm.digital, it has more users, which means that it is federated with more instances. It doesn't mean that you can't view the instances from here. You can paste the !community@instance.tld to the dataterm searchbar and if this community wasn't on the federated list it now will be. That's why more users = more posts on the All feed.
This is something that has to be fixed by lemmy.ml admins I think
https://github.com/LemmyNet/lemmy/issues/3075#issuecomment-1598317356
Seems like it, yes
https://lemmy.ml/c/worldbuilding is a 404 page (the community doesn't exist). It's very weird, because https://lemmy.ml/c/worldbuilding@lemmy.ml exists. I'll experiment and come back to you.
Search for local instances on lemmy.ml:
oh you... lol
It's very indie but I've actually worked on Danger Scavenger (and on this trailer a bit too!)
Maybe you would wanna add it to the list https://questlog.app/games/danger-scavenger
Oh, I forgot to mention that I play more role playing heavy games, so maps are not necessary. But when I played DnD5e, I used OBS and shared my screen for maps and stuff. (OBS so that I could share a map on the left, some info on the right and my face in the bottom etc.)
So I personally would be against it because rn the 'All' feed on Dataterm and the 'Federated' feed on CORTEX are our users' eye into the internet. It's what our users want to see collectively. If we used a relay we would see everything instead. I don't know how the other mods/admins feel about it but I'm guessing similarly. Also, the point of the federation is that you the user are the algorithm in a way, and using a relay would kind of break that imo.