[relentlessflame]

Originally Posted by Xellos-_^

it is been explain already. Kirito in ALO is written differently then in SAO.

But that isn't the case in the anime. Kirito in ALO is written exactly the same as in SAO, in the anime.

Spoiler for Comparison to what people said about the novels:

Besides, from what has been said about the novels, all he did was write it in Japanese characters instead of romaji, so it still wouldn't be so far removed anyway. He would still be "Kirito". If it were famous, it's not like people would be thrown off if it were in Katakana.