I can see some advantages in what the author says, but I don't think the tech industry is a particularly good metaphor - for example, suggesting high-quality pi

I can see some advantages in what the author says, but I don't think the tech industry is a particularly good metaphor - for example, suggesting high-quality pictures of food will convert better. I've not ever been involved in the business end of a restaurant, but I've eaten in a few, and I can't believe that "converting" people who are reading a menu into people who have chosen something is actually a big problem - 99.5% of customers surely manage that one way or another. Similarly, I'm not sure that providing reviews is obviously a good thing for a restaurateur - they hardly want to show you negative reviews of their dishes, and if they only show the positive ones it's obviously useless. I sort of see what he means about people saying when things suck, but surely if the restaurant knows one of their dishes is crap they'd be better off fixing or removing it than showing it with poor reviews.