I think the linked blogpost is the first time I've seen that URL used anywhere user-facing. (other than the status page) bsky.<TLD> is already used for other user-facing URLs though.

I guess bsky.net and bluesky.net were taken. What’s weird is why ICANN allowed .network TLD at all when .net already existed, was shorter, and meant for that.

I can't be the only person who visited bluesky.com, assuming that was the thing everyone was talking about.

This is why you and I aren't in charge of marketing I reckon.