Board Thread:General Discussion/@comment-173.69.148.56-20140221235829/@comment-1173941-20141112233229

A lot of the visual peculiarities in SAO can be crossed of as "abec doing what he feels like". For instance, in every illustration of Kirito in SAO, he's wearing the same coat, regardless of the time-frame. There's also how Eugeo's eyes change from Green, to blue, to green, and then back to blue (Even if the author says they're Green)

Considering that (in the Web Novel) Yui existed as a character LONG before Sachi, I don't think there was ever meant to be an intentional similarity. At the very least Kawahara would have written in something about Yui seeming familiar to Kirito, or something along those lines. He's not a very subtle person.

Basically, what it boils down to is people seeing what they want to see.