Wow. I am the author of this email. I have no idea how it resurfaced after 5 years, I was only made aware of this when a friend emailed me the HN link.
The sad thing is it was not just my company which was targeted, but Apple removed this entire product category. We never knew the real reason why, or if it was bigger than just a random app reviewer trying to apply Apple policy, until May 2019.
That's when Bloomberg interviewed Phillip Shoemaker, who ran app reviews from 2009 to 2016 - regarding how Apple systemically removes whole categories of apps. I subsequently spoke to Phillip Shoemaker, who confirmed that Apple executives ordered the elimination of apps that drove downloads to the App Store. He said "Your app drove download volume. Apple doesn’t want any outside sources to drive ratings. So yeah, we got rid of all app recommendation apps." He said he thought it was unfair, but this was something Apple set out to do, and even as Senior Director of App Store (person directly in charge of App Review), he could not stop it.
The other thing that was hard to understand, is we used to have a great relationship with Apple. We were not flying under the radar. Since the App Store first launched in 2008, we used to be invited to all Apple events to see the new product launches, we met with the iTunes team to discuss upcoming initiates for the App Store, our apps were featured on the devices inside of many demo units into Apple Stores. It felt like a complete 180, and until this day I never got a formal conversation on what they actually objected to, beyond being pointed to a vague rule which was applied arbitrarily. They became a brick wall in terms of communication, and this is why I resorted to emailing Tim Cook. I assumed nothing would come of it, but it was the last thing I could think of.I never received a response, and never knew if he even got it, so I was shocked to see it again today from his inbox.