Blizzard, are you aware of this issue that you could of had Deadly Gladiator Rank, (or even Gladiator rank?) plus the Frostwyrm mount as a level70, along with the achievement called "Earn Gladiator rank in one season at LEVEL 80."?
There was a screenshot, even his/her armory link. I don't link those however, I respect their some sort of "Privacy" here.. :P