My "opinion" is that UA is disguising a fare hike by implementing BE that can exist in almost any fare bucket (except Y and B). If this is successful for UA, you can bet that DL will adjust their program, and AA would likely follow in suit too based on all prior instances of program changes with the airlines (PQD for instance, as well as RDM's being revenue based).
Last edited by WineCountryUA; May 1, 2017 at 3:06 pm
Reason: Removed quote of deleted material