This is a bummer. The UX 500-mile minimums have added up for me on fares between IAD and LWB or SHD, which are often the cheapest for me to get between my school out in the boonies and various *A connections, and it was nice to be getting PQDs this year. Perhaps these routes will remain bookable through UA. Is there a date for this change to take effect, assuming the proposal is accepted?