[robotnixon]

I believe both of those comments are referencing the latest App Store guidelines which have not yet been updated with the proposed changes. According to the court filing it seems possible that you would be able to contact users with information used during the signup flow, and doesn't seem to indicate a restriction of targeting individual users:

"Apple has agreed to revise its App Store Guidelines to permit developers of all app categories to communicate with consenting customers outside their app, including via email and other communication services, about purchasing methods other than in-app purchase. See Berman Decl., Ex. A at § 5.1.3. Under the App’s Store existing Guidelines, developers may not use contact information (emails, phone numbers, etc.) obtained within an app to contact their user base outside the app. As a practical matter, this prevents developers from alerting their customers to alternative payment options. The proposed Settlement lifts this restriction, and it does so for all app categories."