We also have to factor in that how we handle group actors may need to change. A new working group for fediverse projects that use threaded conversations (the "threadiverse" for short) is getting together to discuss what format we should use: articles, notes, or something else. The consensus is that the threadiverse should settle on a common format, regardless of how Mastodon renders it.

Mastodon doesn't have group actors or forums, so many of us felt that they should not be dictating what format we send our posts in. And if we, as a group, agree on what ActivityPub-compliant format to use, we are more likely to see it recognized by others, including Mastodon, over time.