Somehow I've been browsing HN since ~2019 without ever wanting to reply so much that I was willing to make an account (and start receiving emails, etc) but your comment made me curious how easy it could be, and wow. Now I have an account.

I kind of assumed it was hard to make an account (maybe even an invite-only situation) based purely off of how unique most handles were, and how well curated/moderated everything was. So I guess you could say, the quality of the usernames and the quality of the posts :)