Thomas Smith dug into his Facebook settings and downloaded a copy of his data. In a section introduced this year called Off Facebook Activity, he found that companies like Doordash send data about your purchases to Facebook.
If you’ve bought an item on myriad e-commerce websites, made a donation to a political campaign, used any of several hundred participating apps, or, in my case, bought a wildly expensive bubble tea, there’s a good chance Facebook knows about it. What are they doing with this knowledge? Again, it’s pretty clear. It’s there so it can “show you more relevant ads,” “help you discover new businesses and brands,” and the like.
He also sounds incredibly guilty for buying bubble tea through Doordash.