Though I have no doubt it will fall on deaf ears, I sent my complaint, rather long and detailed. I had full plans of matching back to Worldperks before I started flying again this year but the series of changes since 1/1 have been a killer and I can't see abandoning OnePass anymore even though Star Alliance doesn't meet my needs nearly as well. Its truely sad what Delta is doing to NW, its a loss of another great airline.