What a child... Has anyone read the GitHub style guide? 'Do your best to never use a semicolon. This means avoiding them at line breaks and avoiding multi-statement lines.'
Grow up Crockford. Do research before you post. Stop assuming because you supposedly once knew how to do something, you still do, and always will. Times change.
However, this is all very exciting. It gives Twitter, or whatever other start up, an opportunity to replace an outdated piece of software by a nut case!