But you see, there is no @mark. There is @mark.bsky.social (on the app instance that we currently call Blue Sky) but when federation happens and people start running their own instances, those users will be namespaced on a different domain (@mark.marksinstance.io, @mark.someinterest.club, etc.) Right now snagging a coveted handle early still feels nice like you would expect, but its uniqueness and the ability to use the name sans-domain when referencing will be gone if/when decentralization happens.