It was linked earlier in this very thread!
http://eu.battle.net/wow/de/characte...bloed/advanced - 6 Stone Guard kills, 4 Feng kills
http://eu.battle.net/wow/de/characte...rnare/advanced - 6 Stone Guard kills, 5 Feng
That particular guild is clearly exploiting the raid ID bug, and I wouldn't be surprised if there were others doing so.
The guilds that killed bosses before the raid reset, that's Blizzard's fault for allowing it to happen, same as the guilds that are having to reclear because of the bug. I certainly wouldn't expect them to just abandon progress and not be able to start heroics next week because of a mistake on Blizzard's part, and I hope they get no punishment other than losing the loot from the second and subsequent kills. But that particular guild is clearly exploiting it, and should be penalised.