I know when I had mostly stopped engaging with facebook, it started giving me absurd notifications, like "someone you don't know posted something in a group you never check." It starts looking kind of desperate.
Yeah I remember how they tried telling the Apollo dev that the bills won't be due for 30 days so that was like giving them more time. I'd expect that any apps that are still open are going to get a bill in a month.
Narwhal is still open too, I pulled up a list of my subreddits to look for equivalents.