I had 2 flights, one in ATL, one in PSN last week where a "seasoned" pax camped out in the BW line about 30 minutes before boarding. One reading a book, one chatting up the GAs. It was obvious they had done this many times as they knew all the staff.
Both times, they didn't wait for the boarding call but knew the signs when boarding was about to be called and jumped up to the GA before anyone else knew what was going on. I hadn't flown in a couple of months so I was curious as to how BW was working these days.
I thought they had previously announced they would board Zone 1 through general, then BW. Ergo, I (BW and Zone 1 on BP) lined up in the general boarding line. In PNS, the guy camped out in the BW line managed to schlep ALL THREE of his carry on bags into MY overhead bin, which was the point of this exercise I'm sure, and sat 2 rows behind me in F.