It appears that this has been fixed!
Sorry if this is a repost, didn't find anything through the search function.
Just for those of you who want my source: Comments on WoWhead + thread on <Snip>
I'm just bringing this here, trying to contribute...
The exploit:
In Hellfire Peninsula, there is a mob named Maiden of Pain, which casts the buff Whipped Frenzy. The buff increases your attack speed by 30% for 5 minutes Whipped Frenzy - Spell - World of Warcraft
So what you do is:
1. Enslave the demon with a warlock
2. Cast buff on a physical DPS character (doesn't give cast speed)
3. Summon character with buff inside the raid and have a 5 min DPS increase
Edit: Updated with new info from invadertag who pointed out that you lose the pet when summoned inside.
http://www.wowmeteronline.com/combat...9338191#buffer - buff in action (notice the 'Whipped Frenzy' buff on the right). And yes, this is also from the MMO champ thread.....