Not earth-shattering tech, but interesting to see it listed out.
https://www.bloomberg.com/view/articles/2017-04-18/united-airlines-exposes-our-twisted-idea-of-dignity
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This is why we keep a rewards program for one hotel chain.
..and why I almost skipped the current flights to Wilm as I couldn't use my Gold level at SAS to get a decent seat/lounge access etc.