I'm not even mad that it's basically a pitch to get readers to give problem/product feedback, I'm just pleasantly surprised this wasn't a total fluffpiece about todo list apps.
My favorite takeaway is the idea of asking users how they would convince their friend NOT to use a product. Excellent way to get users to authentically pinpoint the parts of the product they find the most painful.
These questions are doing wonders for me. It's even crazier when asking the client face-to-face, why "something is 'add negative here'"
If we ask positive questions, people that don't like the product, will never answer. The ones who do, will maybe give a vanilla answer back.
With the 'negative' approach I think we give the nay-sayers a chance to vent and say "THANK YOU FOR ASKING ME THAT! Was hoping someone points out this product is crap for x/y/z reasons" // something along those lines...