It's a play for unix filesystem's layout - /sbin -> kbin. Can't recall the post, but that was answered by Ernest himself.

I think it's pretty safe to say that the two terms are unrelated, and that most people on a non-Japanese-speaking community would not make that same connection.

kbin sounds a lot like karabin, which means rifle in Polish.

ケビン is closer, which is just the transliteration of Kevin.