To explain why the fediverse is such a nice place, I like to say that it is made up of communities that have their own rules and keep their own neighbourhood clean. That also explains why we have less problems with moderation than a global monopolistic platform, but that may not be a good opening sentence. The disadvantage is that you then have to additionally explain that you can still talk to (almost) anyone. For explaining how it works technically, the email system is really helpful.
Next to inviting citations, it would also be nice for everyone to be able to add citations. Make it more of a collaborative effort than someone’s time line.
Would it need a way to make clear we are really interested in the citation? I feel that most cases people ask for citations, they mean to say diplomatically that the claim is nonsense.