Fediverse

Yes, however without experience with Lemmy's implementation, it wasn't clear what the differences were. From what I've read of Lemmy's basic implementation, i.e. submit a reason with your registration/application, this didn't sound that far from it.

As I read it, Pixelfed's request for more information form is a good addition (better than the awkward roundabout way you'd have to handle it otherwise, as I think I recall seeing come up with Lemmy), albeit as it's optional we'll have to see how well it's used in practice.