Known Bad Actors

• Gmail has sent me multiple emails titled "you're not using the official Gmail app", with no way to stop them.
  • "Welcome to Google on your new Apple iPhone. Take the final steps to finish setting up your Apple iPhone by downloading these official Google apps." After re-authenticating Google (mail) account.
• LinkedIn has sent me multiple unsolicited emails, often relating to people I have never heard of.
• Apple is monopolistic, and deliberately undermines competion against itself in ways that are deeply harmful to customers. As a user of Spotify, I noticed and hated many of the things that were pointed out in this article.
• I'm not touching Netflix because they only provide 720p for Firefox on Linux in 2019 (and counting).

Other

• Quora hoards knowledge despite asking for community contributions.