Just a personal opinion here, but I feel that no matter how small a website is, as long as at least one person visits it, the intended effect is achieved. It's no harm trying, really. It doesn't have to be something extreme. A small little message or thread would help even. But that's just how I feel. Everyone has their own opinions so I respect the opposing opinions too. 🙂
Yeah, nobody with the power to pass a bill will even care if a website goes offline, it won't help anything and will ruin your site like THT mentioned, is it really necessary to go overboard? Even the bigger websites will only have a tiny impact.