The correct answer is that people don't like being rude and saying no, particularly when its' easy for them to agree.

If you have no product and are not asking for a sale, saying 'yes' has not cost to the person. Saying 'no' makes them a grouch, and they would have to justify why they said no. So lots of people say 'yes' even though they don't really mean it.

That's why the only data worth talking about is sales and adoption, and why minimum viable product is the way to go.