Originally Posted by
aacharya
Yes, but not for the reason they don't have a seat - it's because they're one of the last to buy tickets and are not elite.
Correct, the lack of seat increases the likelihood of IDB not the reverse. Like WineCountryUA said, I wouldn't worry about the IDB too much since is so unlikely to happen. Just something to keep in mind if you find yourself without a seat at check-in and have to be somewhere.