I'll certainly have a look.
Ordinarily I wouldn't trust a thing to come out of Facebook these days. Although I don't doubt the research they've done. After all they've used plenty research against their own users.
However if it can be used for good. 😁
Facebook certainly has a lot of data and I'm sure they are using it to make money from our information. I get a strange thrill out of using their own research into social media posting against them and to our own benefit.