everyone should know what OQueue is and if you don't go here
https://solidice.com/oqueue/
anyways it's a cross server add on that's quite useful.
this exploit is how I got my Shadowmourne.
I got up to the infusions. Recruited with OQ when people didn't listen and tried to kill the boss you just leave the raid and hearth and you won't get saved (On Heroic) and you can reform the group with brand new players even if they're already in combat. how is this an exploit? well with this method was able to get from quest 1 of shadowmourne chain to Shadowfrost shards in one raid lock out in one night. because you'll have endless noobs to join. things that help is a public vent OQ's public vent works each time you do this get a different ventrilo name so people don't know where you went if they try to troll you.
cheers!