Groups are become a crucial part of Prismo (group is gonna be a equivalent of sub-reddit - more here: How to name sub-prismos? ) at some point in time (soon) and as there is no official ActivityPub Group spec, i think it would be great to agree on this together. I’m not sure if any other project here is gonna implement the Groups feature but if so - i would love to hear about it and know your thoughts.
So far, the only federation-related project having Groups i’m aware of is GNUsocial (https://gnusocial.net/doc/groups). They use a bang notation
[email protected] and i have absolutely nothing against it. Also, they are kind of a pioneers in that matter so we could say “they were first - let’s stick to their convention”.
On the other hand, Mastodon author once said somewhere that he doesn’t like the bang notation (which means he would prefer to use a different one? hard to guess) and as a Mastodon being the biggest activitypub project out there, we need to take his words seriously. We would rather not end up with few different notations for describing/mentioning a AP group as it would be a paint to maintain for all of us.
So, what’s your thoughts on that? Personally i’m for the bang notation or eventually a “at-bang” one (
@! - it would make it compatible with mastodon out of the box.)