I just came across a story about an Australian fashion store where a sales associate was rude to a customer, insulted her body, called her a 'joke' and chased her out of the store. Why? Because she could not find what she needed there and decided not to buy something.
When she complained, his manager called him a 'retail superstar' and basically said they expect their associates to be snobs.
Just wow. Wow. Unfortunately, a lot of writers treat their readers like that. Especially if they don't buy something. The truth is, you can't afford to chase off a reader, even if it turns out they would never buy your book in a million years.
People talk to each other, especially in these days of the internet. What is the right attitude to take when a reader says thanks but no thanks?
The best thing to do might well be to recommend something that might be more to their taste...and then everyone wins.