Seem's that blizz are cracking down on macro and addon automation again. You cannot auto cancel auctions with QA2 or other addons now.
QA2 have found a workaround for now and it is implemented in their latest version, but they reckon blizztards will close that loophole soon.
I guess Arthas is pissed off that with all the auction house cancelling going on that his "Glyph of Frozen Throne Warming" keeps getting undercut. Arsehole!