Another one who now goes 20 mins before departure, no matter what the boards say. Mainly because once I was enjoying my time in the lounge and no announcement for my flight - realised 15min out and walked out, only to hear my personal page. Got to the flight less than 15 seconds after the page, and they said that I'd been offloaded. Why make an announcement if you're already off?
Maybe it was an offloading page to say stay in the lounge and wait for the next one