Verbatim from one of the ORD K-7 GAs last night when I inquired whether this indeed was the SFO flight and if so, why was the usual flight departure info not on the gate monitors.
No surprise here, 1561 the daily 6:40p ORD-SFO 763 was delayed again last night. I passed the time in the AC, periodically checking the monitors and AA.com for departure updates. Both consistently showed 7:45p until some time just prior to 7:10p when I decided go down to the gate. As I walked by the departure monitors on the way to the elevators, 1561 had disappeared. What the f?

I hustle down to K-7 to find no plane, lots of people and gate monitors displaying no flight info, just the AA logo. Did I somehow miss an update and my flight?? The GA confirms that this is indeed SFO (although I neglected ask if it was 1561) and we have the monitor discussion. Now 7:15p and I get an AA Flight Update email showing a revised 7:16p departure. That, no plane at the gate and the couple beside me with BPs for the 8:25p SFO flight prompt me to go back to the GA and confirm that this is indeed 1561. And naturally, upon arrival at SFO, I retrieve another AA Flight Update email sent after we had pushed back from the gate at ORD.