In my opinion Delta already has the worst mileage program to redeem points since you can rarely find

One of my travel agent friends just forwarded this Delta Airlines email from there sales office to me. It might cause some concern for mileage junkies as they are going to start reducing credit on select "special fares" and accrual rates towards SkyMiles dallas airport hotel Medallion status.
In my opinion Delta already has the worst mileage program to redeem points since you can rarely find award tickets for the old standard of 25,000 (they are usually asking for 42,000) and they don't offer deals on one-way award tickets.
(August 17, 2012) Effective for tickets issued on or after September 1, 2012, Delta will adjust its policy for SkyMiles mileage accrual earned on select special fares which are often referred to as "unpublished fares."
The select unpublished fares will no longer earn full mileage credit and instead will earn a modified mileage dallas airport hotel accrual rate for certain classes of service from select dallas airport hotel points of sale.  This change aligns with mileage polices of our transatlantic joint venture partners.
Modified mileage dallas airport hotel accrual is effective for special fare-priced tickets issued on or after September 1, 2012 except tickets issued in the Asia Pacific region, which will continue to earn full mileage based on SkyMiles program rules.
dallas airport hotel Questions regarding groups may be directed to a Delta Group Representative at 1-800-532-4777 for Domestic dallas airport hotel travel and 1-800-337-4777 for International travel. The Delta Group and Specialty Sales Center is open Mon Fri 8 a.m. 8 p.m. EST.
All SkyMiles program rules apply to SkyMiles dallas airport hotel program membership, dallas airport hotel miles, offers, mile accrual, mile redemption and travel benefits. To review the rules, please visit Membership Guide Program Rules. These rules are subject to change at any time. Unless otherwise stated, the current rules in effect at the time of your travel, request dallas airport hotel for a benefit, or other transaction will govern dallas airport hotel that transaction.