> If not, then you ARE the product
I see this repeated a lot and the reasoning doesn't hold up. You aren't the product - your data is a commodity. And there's plenty of free stuff online for which your data isn't a commodity (e.g. Wikipedia, Project Gutenberg, Khan Academy, so much of the free and open source software). So saying something like "if it's free, you're the product" is just lazy and demonstrably false.