If they do it right, you won’t even notice or feel like you have no choice to buy something.
They want to know you better than you know yourself. I doubt they would be interested in any information you would provide because it would be useless compared to what they can get.
Most of the phyc research is done by large companies to crack all our brains open so we open our wallets.
You’re probably depressed because that is what they want you to be. So you maximize screen time for adds and purchases.
So the quality is worth the price of not owning the work you do?
I guess everyone has to make their own call…