In spite of some of the reaction to it, I find Google Wave to be surprisingly useful. One thing I don’t really understand, though, is its scrollbars. They behave quite differently from regular scrollbars, and I can’t discern any overwhelming advantages of Google’s implementation. It seems I’m not alone. The unofficial Google Wave manual deems it necessary to explain how the scrollbars work. Google’s own support site for Wave has an entry titled What’s the deal with the scrollbar?, and there’s even a Chrome extension which replaces Google’s scrollbars with native scrollbars.