I SDCed from LEX-MSP last week to LEX-ATL-MSP. After checking in, I was 2 of 16 for 5 available seats. When I checked into the Sky Club in ATL, I was told I was 3 for 3 available seats with about an hour to go before boarding. I checked delta.dumb right before leaving the Sky Club and it said I was 4 of twenty-something or thirty-something with 1 open seat. Well, when I got to the gate, they were boarding Zone 2 so I waited to speak to the one available GA to see if F had boarded in full. While waiting, I watched the cleared list and noticed I had cleared and was in 5C. Go figure.