But there is no trademark or copyright abuse here. The domain and website in question - comcastroturf - is protected under fair use. It's not impersonating Comcast in any way.

The concern is that if they're willing to be aggressive jerks in a situation like this, why make it easier for them to actually hijack or block the site? Of course, net neutrality is about much more than that, but that's how I understood the direct tie-in here.