Yeah, I guess the "err" is on my side, I've always took "suck up" as a synonym for scraping, not just "using data for stuff".

And yeah, you're most likely right about the first, and the contract writers have with Amazon most certainly anticipates this, and includes both uses in their contract. But! Never published on Amazon, so don't know, but I'm guessing they already have the rights for doing so with what people been uploading these last few years.