I have the app but it never tells me about bags of crap even though I have it set to do so. It notifies me of other stuff, just not that stuff. Darn thing.
If it matters, I have a Google Pixel 2, Android 8.1.0 with the May security update, and I'm using the beta version of the app for some reason.
I GOT A FRICKING LETTER (November, 2017).