You're a few years behind: people actually went "haha, good joke... for real tho that's actually how we version, let's make it official" and then started using it in earnest.

There've been plenty of projects that officially use 0.x versioning for years now.

Yeah, really not though: you clearly haven't seen projects that actually use that as their official versioning policy ever since semver.org got published. So no, the joke didn't go over my head, because zerover stopped being a joke years ago. Unfortunately for everyone, the world took it seriously.

Do try to catch up.