Wow, this got demoted to Bloggers & Personal in a tearing hurry.
I don’t see how this could be legal. I have to check WND from my home computer later. A website is property and making someone’s site look like it has content that is not allowed is no different than walking onto someones front lawn and putting up lawn signs of your choice. There is also a serious issue with interferring with the business of the website. The sites make money on thier ads, some of which are pay-per-click. If Google is not allowing people to veiw the ads, they are taking away the sites ability to earn an income.
I do believe that hacking someones site is illegal.