United management must be pretty darned pleased with themselves over the idea that they can get people so happy about a $5 rebate per flight (once they've bought into the "club") and then spend so much time & energy trying to track it... what a great way to distract flyers from far more serious issues!
$5 buys you a medium (or "grande") latte, something people wouldn't go out of their way to get a discount on, yet many drink them every single day, far more often than they fly.
Then again, I've never understood the allure to drink chits either.
Maybe this is a trial for the 2013 2P program? Cut out the remaining benefits (one piece of luggage, E+ at 24 hours... think that's about all that's left) and just offer them a $5 cash rebate for each flight booked on UA.com.
This is one strange thread.