When I signed up for Substack, I saw that there was a setting for "mailing address," which is pre-populated with Substack's mailing address. Why? Because appar

When I signed up for Substack, I saw that there was a setting for "mailing address," which is pre-populated with Substack's mailing address. Why? Because apparently there's a law that at the bottom of commercial email, you need to have a mailing address and unsubscribe link. (So I guess if they got any mail for you, they'd let you know somehow?) Similarly for getting a domain name. Technically, you are required to provide your mailing address, email address, and phone number. However, most registrars will let you keep them private and use theirs instead. Perhaps something similar will happen for Android developers? There could be a relatively lightweight and user-friendly company that handles Play Store listings for indy developers. Do such companies exist already? It would be interesting to hear from developers who use them.