There are over 300M companies in the world. It seems only 2 companies did this. So look at the revenue models of the other 299,999,998 companies. Meta only started this less than a year ago, so look at their revenue model prior to that.
If I could pay for my groceries with my browsing habits I would. In fact, I bet most people would.
If I could pay for my groceries with my browsing habits I would. In fact, I bet most people would.