I think that was just in Cannes or something.
Edit: It seems I’m wrong! Basically it’s up to the cinema to include it, but it doesn’t change all that much. I had my information from reading a review by a reviewer who thought he had witnessed something completely unique.
I think this makes a lot of sense. We don’t want the instance hosting, say, football communities to be defederated anywhere on account of its users behaving poorly. In general there’s just no reasons to have the users in the same place as the community.