As a lowly civilian. it's easier for me to tell them all to eff off. I am not so interested in my bloodline that I would give away all that data that can be used against me. As I mentioned upthread, I have P.T. Barnum for a GGGF, and that's plenty of info for me right there.
In England there are multiple places that will research your 'Coat of Arms'. You give them your name and $50 and they will show you your ancestral Coat of Arms. You have to pay more to get it on a plaque.
The problem is there is no way to independently verify that what they are telling you is true. The second problem is that everyone, no matter what their name is, seemed to miraculously have a Coat of Arms. If a Philippino or a Chinese person went in to one of these shops, he would wind up with some kind of Coat of Arms. A fish head, a bowl of rice, with crossed chopsticks in the middle. It really did seem to be not very serious. I'm worried that these DNA places are the same way.
Every White person in America is related to George Washington? Every Black person in America is related to Thomas Jefferson? I'm sorry. But I question these results.