I am afraid I am screwed as well. Booked a flight as I would normally do while logged into FB. Then I added a piece of luggage later with the 10EUR Explorer discount. Now I recently came across the status match challenge with Delta and am thus planning to credit the flights to Skymiles instead. I asked KL through Facebook to remove my FB number. But perhaps the piece of luggage will trigger accrual to FB since it has the Explorer discount and would qualify for miles in itself?