I guess the guy has a point, but ... I still disagree. There are only two ways to name multiword identifiers, this-is-a-multiword-identifier or this_is_a_multiword_identifier. Both take the same amount of space, and the lisp-version is easier. No serious programmer would write thisIsAMultiwordIdentifier, so it doesn't matter that it's shorter. It saves a few bytes, but it will ensure that your program is completely unreadable.