I don't think that there is an existing thread on this specific subject matter either - however, there have often been complaints of airlines filing fares that there is little or no availability for - sometimes, there have even been fares filed for routes that they don't even fly.
Either way, this is a more suitable discussion topic for the TravelBuzz forum, which is where I'm moving this thread.
Please continue discussion there.
Thanks!
bhatnasx
MR moderator