Originally Posted by
SpammersAreScum
To be fair, BIS miles did get discarded in the million-mile combining. Specifically, miles flown on, say, United and credited to DM account. I have to say that came as a rude surprise to me.
Except that UA BIS miles were NEVER calculated by US to determine one's US Airways MM status. So technically, those UA BIS miles were discarded by US Airways long before this merger even took place; and had nothing to do with the AA/US combining of the two FFer programs.