Board Thread:Questions and Answers/@comment-34434093-20180124180213/@comment-1200981-20180125132446

No, he was just joking around with Kirito by making fun of his delicate looks(which is a bit of a running joke in the Light Novels and it was the reason why Kirito wanted his avatar to look different from his RL body)before the two of them parted ways. Kirito even retorted that Klein looked much better as a mountain bandit. It's just playful banter.