In reply to drunken monkey:
Walked past the accident black-spot in good visibility last Sunday. I'd say that the snow has drifted a bit differently this year and created rises that push people in that direction if they are unaware. The "triple cairns" at the Gardyloo direction-change are also almost buried and could be easily missed.
There were all sorts up there on Sunday, many with innapropriate footwear and probably no navigational ability. Any one of them could have ended up in the shit if the weather had changed. I personally feel that more robust action has to be taken to prevent long and risky call-outs from recurring.