I'd call this an unintended consequence of new regulations, but it was so freaking obvious that this would happen I don't know that it can be reasonable classified as "unintended":
Continental Will Cancel Flights To Avoid Fines For Late Takeoffs
I don't remember who, but I read a blogger predicting this months ago, when the regulation was announced.
UPDATE: SB7 cordially reminds me that it was indeed him. And it was only weeks ago. My memory sucks. (I had thought it was SB7, but a cursory google search didn't turn it up and I was rushing, so...)