Well, that's what makes his letter interesting. There are a hundred and one people who don't like your product. There are all the undecided people and non-promoter users who won't write you about things about your product. And then there are the super-fans.
You can win over the undecided and the non-promoter users, you have the super-fans, and it'll take a lot of work to get the people who don't like you to like you, so you spend your time on the first two categories.
Given that only the last two write you, and you don't care about the last, it makes sense for the super-fans to make it clear that they're super-fans. And if a super-fan is telling you you're making things hard for them, you care.
You mean people who drive revenue for you and people who don't. Emotions don't matter.
Only the people that find their way to the 'right' arguments are consistently welcomed - more than a few famous people in the community had to backpedal into saying Epic is just as bad because they want to make money off app sellers too, and not only that, they _entrapped_ Apple.
Daring Fireball plays a key role in what exactly 'Get It' means - ex. the nauseating amount of people saying all this is cool because something something Epic is a big corporation too.
The way the letter writer feels a need to keep on praising Apple and their vision and how everything]else is not worth anything make me nauseous.