So you didn't want to fill out a form on the developer's website but you had plenty of time to come here and complain? Seriously, a minute of typing your info is too much trouble?
The post sign-up confirmation email is proof to the service that you indeed opted-in to their service and agree to receive future emails. Without a confirmation, the service is at risk of being blacklisted for spam.
From my observations, the fastest cash transaction will outpace the fastest credit transaction by a wide margin
Nearly every modern point of sale self-swipe card terminal will allow you to swipe, insert pin, and sign electronically before the cashier can finish scanning your items. The only step left once that has completed is to approve the transaction total with the push of a button. I wish more people were aware of this, and then card transactions would be faster.