Hilton May Add “Black Diamond” Above Diamond Reserve—Pushing Diamond Status Further Down [Roundup]

Hilton’s “Black Diamond” has surfaced in internal materials, suggesting another status tier above Diamond Reserve could push ordinary Diamonds further down the ranks. Also: a $50 Rakuten signup offer ending soon, CardPointers’ coming price increase, Southwest flight attendants challenging their union, and the American Airlines barbecue platter worth ordering.