Hahaha they have been drawing up footnotes to this since the day they started last year.
Struggling to decide whether to even try for this. 25,000 is a pretty good incentive, but it will involve many detours. Anywhere with giftcards that can be bought through e-store? I think that would be my preferred route. Daily detours will get dull.
Oh and excluding already booked flights is just nasty. The majority of the majority of people's flights are booked in advance.
Nestlé of course excluded, 1 Star up to max of 5 or 10 would have been nice.