Do places like 23&me just take you at your word on who you are, and that you sent the right DNA?
"When you purchase our Services or create a 23andMe account and register your kit, we collect Personal Information, such as your name, date of birth, billing and shipping address, payment information (e.g., credit card) and contact information (e.g. email, phone number and license number)."
https://www.23andme.com/about/privacy/#jump-link-content-the...
They are asking for some unusual stuff like DOB and license number.
Also: This means there is enormous potential to pollute their signal with tons of false noise. I hope(dangerous word) that this has already happened, or is in progress.