If you read the content of the site, w3schools was attempted contact multiple times. They also browsed the github repo and started making changes to their site to save face.
You're absolutely right, if they made it something community driven and contributed to, it'd rock! That's why MDC is linked to, it's a wiki!
But launching a frontal assault isn't the way to solve the problem.
I note with irony that the w3fools site displays as a blank page in IE-8 ;<(