I would be more responsive online if so many sites hadn't decided to throw "a person you know is speaking directly to you" and "We Think This Might Interest You" into the same bucket of infinite notifications
extra special hate for the CVS app, which does not have separate notification settings for "your prescription cannot be filled, contact your doctor ASAP" and "new deals picked just for you!"
great job, CVS marketers, you found a scenario where it might be medically dangerous for your users to turn off notifications, and you put ads in it