Google, You Creepy Sonofabitch
I'm going to be completely honest here: If these things were behind a configuration option and defaulted to off, I'd have gone into my phone and turned that option on. I want to leave reviews for restaurants as I'm walking out of them - it serves the common good and doing it immediately is better for memory. I want to remember to download offline maps when I'm about to go somewhere where I won't have coverage. My memory is terrible enough that I can't do those things myself. Google obviously can't provide this service out of the goodness of its heart, of course it's going to have self-serving tweaks added on, but I consider those to be easily worth the value I get out of Google Prosthetic Associative Memory.