I seem to remember him being a 75 NIN (correct me if I'm wrong), which being one myself, I don't see how he could do that and have narcolepsy... A person with narcolepsy generally falls asleep several times throughout the day for short periods of time, often uncontrollably and at inappropriate times. Tanking 10-75, he would no doubt die an enormous amount of times and most likely build a reputation for it. It would also take a very long time to lvl up with this problem...
I think there are certain jobs that a person with narcolepsy could get away with doing much easier than others, such as DD jobs. I don't see a person with this problem being a very successful mage or tank.
I have not heard of him in the past as well, which is interesting with all the recent flames and attention he's been getting. Did he buy this account? Otherwise, I wonder why this has all came up as of recently.