mlsoft, you wrote <historical comparisons are only valid if you use GAAP earnings>. You are much sharper than myself. But do not GAAP vary by indusrty? And within a given industry there may be loose interpretations.
My guess is that you knew one D Bottorff that sold off his companies real estate and under (shady at best) GAAP rules counted it as current quarter income.
Admittedly, GAAP is head and shoulders above pro forma, but it is not always an honest reporting vehicle.