Right, but an app shouldn’t be spying on me to support a feature I don’t actively use. If they want to include it in the binary for other people to use, I don’t have a big problem with that as long as it stays off.

A corollary is that the app shouldn’t ask for a permission until the user has asked it to do something that will obviously require that permission.

In general, I agree. In this specific context, the suggestion feature appears to have been enabled as a result of the user uploading a photo. It's reasonable to assume if they uploaded one, they'll want to upload more in the future (and decrease the friction of doing that).

Oh; I had assumed that the original upload was from a computer, but they didn’t actually say that, did they?