Woo-hoo, I got the offer for once. Thanks, @FourOhFour!
And it's nice - this time there's a tracker for how much I've spent already, and also they have a little survey where you can indicate whether you like the offer or not. Not sure the input will actually matter, but they are asking.
I suppose one could be cynical about how they will use one's answer, but I'm choosing to be optimistic, or at least not negative

...
QUOTE=FourOhFour;4230500]Here we go again... spend $15 get $5. June 13-24
https://smile.amazon.com/kindlerewards/offer[/QUOTE]