[meow81]

You must opt in to share your data for research. Each 23andme user has a choice.

email I received from 23andme today. "Our top priority is you, the customer, and empowering you with the options to participate in research. As always, you choose whether or not to participate in research. You can choose to opt-in or opt-out at any time."

If you're not a customer, might not want to throw around assumptions.