I'm observing the community has some work to do to promote the consistent use of Fediverse user handles.

I'm going through the registrations for #FediForum, and note that attendees use all sorts of variations on their handles, including @user@server, user@server, https://server/@user and @user (???)

I would guess that attendees at FediForum tend to be more knowledgeable about the Fediverse than the average user, so it seems safe to say that the world is confused about fediverse handles.