1) Stiffy *snigger*
2) doubling the capacity with a hole-punch gives you a 1.44 disk that was only rated for 720 and while you might get away with it a lot of the time, this might hint at the possibility of an explanation for the high error rates
3) putting stuff on re-used compuserve disks has its own "probability set" given the cost-related data survival expectation of said disks, given what you paid for them
4) Other FAT-but-not-FAT type disks had swearing too
5) Extra hate to everybody for dredging up painful memories, may you all receive socks for Christmas *that are too small*