There are actually enough that you can type your DOB in the format YYYYMMDD and find a submission for it!

This has been true since https://news.ycombinator.com/edit?id=20190615 was posted on June 15, 2019.

It took me a moment to think through what a leading zero on a DOB meant and that it wasn't a Long Now foundation thing.

52950

What format of DOB is that? M/DD/YY?

Or possibly a Julian date for a first-millennial.