Honestly I’ve never gotten the desire to do one of these things. You give away arguably the most uniquely valuable and private part of yourself to this company (or companies like it) to do god knows what with in exchange for these results that are (IMO) ultimately just unnecessary trivia about yourself.
Ugh. I work in the public sector and let me tell you, there are SO many companies that send the most dogiest, scammiest looking emails telling you to follow a link, only for it to turn out to be perfectly legitimate.
I honestly can see now why people end up falling for these things when even legitimate companies send emails looking just like phishing scammers