Actually I like having a “smaller” space. Reddit was already way too big, with an anonymous giant blob of users. I wouldn’t even have bothered writing an answer like I do now, since it would have been buried under 100s of other posts and comments within seconds. Sometimes smaller and slower are positive features, at least to me.
I think a key benefit here is that the pre-registration allows for faster processing at the border itself, cutting down on queues at the airport. Singapore runs a system where after preregistration you can just walk through an automated (though somewhat finicky) scanner. No queues after arrival, I basically stepped off the international flight and went straight to the city with barely a wait.