A username field isn’t for your real name, it’s for a username and it has always been for that. Stop being intentionally obtuse.
What’s to stop them from using all of the required user fields and then running a background fingerprinting check and then using that fingerprint every single time you visit a site? It doesn’t have to be your real date of birth. What matters is that it’s a consistent info for your user account so that they can identify who you are. Obviously there are other ways to fingerprint a user, but this just makes it easier to do so, and it’s another unnecessary datapoint for “them” to use.
People are defending this with such fervor, too, that it really makes a person doubt whether they’re even arguing against actual humans. Like, I can see why people would be against general change or against privacy invasion, but why would someone care so much about defending a date of birth field?



All these other people are completely right, but also I just took mine off and flipped it so that the holes were on top it gave me a solid two inches more water space. It was just two phillips screws.