I am wondering how many people will actually fill in the form with their real information not even thinking

It's fine, the data is only locally submitted:
That's what (((THEY))) want you to think.
For the super paranoid, you should verify this information yourself. In theory, this whole April Fools prank could be a ruse to try to get xx user's private information if there was some good reason (such as a national security subpoena) to try to get their information. I think the chances of that are low.
Alternatively, you can leave all the fields blank, and the KYC request at the top of every page will go away.