I burn those miles as fast as I get 'em for the flights and upgrades I want NOW. We've already seen the degradation of F and J to shameful service levels; now the degradation of mileage earning. Beauty.
Should the 2 airlines I do the my 180K a year on (AA, AS) pull this garbage like BA and DL, it's adios to the "friendly skies" for this guy, and I'll take the $40K I spent on travel last year with me. Horror of horrors, I'm actually getting a little tired of putting my can in a seat this much in a year as it is. All I need is a few more reasons to turn the faucet off.