"Tom's Guide remains skeptical, however. Falsifying a boarding pass requires creating a very specific barcode and usually ties your name to a seat. Without knowing which seats on a flight are empty, your odds of choosing an unoccupied spot are low." THAT MADE ME LAUGH SO HARD RIGHT THERE!!i once had a flight where my seat was sold 3 times and 2 other people who had bought other seats as others had also bought, were shuffled to my seat. 5 people vying for one seat, mine, which i had booked 3 months in advance. they tried to bump me 3 times until i called over a cop and asked him who goes to jail for committing fraud.... i got my seat and my return flight became free so long as i didn't press charges against the air line.alot of times my seat has been double booked and i took free miles or upgraded to 1st class or 1/2 priced fare on a later flight an hour or 5 after. i still have enough miles to fly around the world 8 times.