You've completely glossed over the fact that sending those emails leads to people using the service. Are you suggesting that those users are angry and still ha

You've completely glossed over the fact that sending those emails leads to people using the service. Are you suggesting that those users are angry and still handing over the card details? Of course it would be much better if companies could only email those users who they knew were going to pay (and not bother the other percentage who wont). Until this magic exists, companies will send email because it works. Those who do not are holding themselves back.