I know many of those seats are bought by Pittsburgh corporations. It seems they're just not being used and the corporations, for some reason, just don't bother promoting them. I don't know why.
That just simply isn't true. For example, for the Florida State game, looking at the seat map of what is available in section 109, which is a club section, that section has 264 seats in it. As of right now, 91 of those seats are sold, which means that 173 seats, or 66% of them, are unsold.
And if you looked at the seat map for games in the past, that is not unusual. There have been a lot of games this season where the club sections are some of the lowest sections in terms of percentage sold in the lower level. Right now for the Florida State game probably half of the club seats overall are still unsold. So when you see all those empty club seat, yeah, sure, some number of that is no shows. But most if it is that the seats never sold in the first place.