By the time you are reading this post the news will likely have circulated around the internet and back. But for those who don't venture much:
Thurs Feb 4th, the Primary raiding team of Ensidia was given a 72hour suspension for abuse of mechanics in the 25man normal Lich King encounter, which led to a world first kill.
There had been a lot of speculation about the conditions in which Ensidia completed this kill, while some people were default "OMG DEY CHEETZED" and others were "they are No1..they got No1 kill, working as intended".. blizzard, in the end, gave the answer.
Their achievements, boss loot were both stripped.
Personally, I am kind of on the fence about it. If they out right cheated the system, just for the sake of world first, then they got what they deserved. If in the process of getting the kill the bug/exploit was discovered, then I would approve of blizz just having them re-do the fight with the hotfix. The attitude so far though of the few Ensidia members seen indicates more the former than the latter.
I will also add this caveat: Ensidia is also known for shenanigans. While the chances are slim given the scope of the aftermath, it is possible that this is one of their "hahaha just kidding, nothing really happened."