My stats were actually only average compared to others who were stat stacking. I heard of many over 50 million health.
It was great fun, new PTR build incoming as I write this though may fix it. My melee haste was down to 0.06, so when I hit someone it was 63k per hit but would go off 10 times or so, like a machine gun. So one strike on an opponent could do over 600k damage, with my spell damage and healing still at 230k or so as well. Lots of fun killing the raid bosses with a few shots, or one-shotting the BEM dragons or NPCs in major cities. I also had into the hundreds of percent on parry and dodge, so I could not be hit with melee attacks at all, only spells would do damage to me.
Since this bug involved using a bank bag exchange bug, the opposite faction had taken upon themselves to kill the bankers wherever possible to keep opposing players from using it. So, the best place to use the bug is in Shattrath. Zoning removes the stats, so you can't use it in instances or after zoning to other continents.