So Ensidiagate (thanks Matticus) exploded yesterday. For those of you who haven't heard about it: Ensidia, arguably the world's top raiding guild, got the world-first kill of the Lich King in 25-man. Then, Blizzard revoked the achievements and suspended the entire guild for 3 days for "exploiting" to win the fight. Evidently, engineering items that cause siege damage bug out the encounter, causing it to become significantly easier. Rogues with engineering are known to use Saronite Bombs on cooldown to maximize their dps, and this kill was no exception.
There's been some half-hearted debate and full-hearted buzz about the subject in the WoW community, with many trying to decide if the ban and loss of the world first was justified.
Boubouille's post on the subject, including Ensidia's raid logs, should put this matter to rest.
There was no way for them to know the fight wasn't supposed to work that way. Using the saronite bombs is standard. And now they are screwed out of not only the world-first, but they have to wait an extra week to do hardmodes. This basically invalidates an entire tier of content for a world-first guild. All for doing something that they had no idea was wrong, and no way of knowing was wrong.
I'm not a fan of Ensidia, but they are in the right here, so their treatment is disappointing. Blizz should give it all back and make a big apology. Then wipe the egg off their faces.