Ah, but then it's not like you get all of the data, just the names that are often fake anyway no? I mean I don't know anyone who used 23 and me under their real name.
You might be right but even my non-technical 50 years old friend who decided to use 23 and me with her sister to see if they shared the same father, did it with a fake name.
I would bet that an overwhelming majority of 23 and me users do so under their real names.
I would bet that an overwhelming majority of HN users who use 23 and me do not do so under their real names.