Originally Posted by
SpammersAreScum
Well, it does harm flyers, because a single flight number for AAA-BBB-CCC gets treated as if it were AAA-CCC for the purpose of computing base miles (and therefore MM and EQM but not RDM any more). The silver lining, such as it is, is that it often means fewer stickers needed for upgrading.
Should be able to call and have the segments 'divorced' at least I know it's possible to do this on Delta. Can't remember if I've ever done it on AA or not.