Here's a quick fix that will allow you to access and use the United forum:
Click on the United forum link. The page will load but have no topics. Select SHOW ALL TOPICS from the menu on the right and the page will reload with all 127 pages of discussion. If you use any other time fram such as the last 5 or 10 days, it will not work.
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Addicted to airline miles? Check out:
The Airline Mileage Workshop