don't like the activities of some entities on the internet? 1: figure out who they are, if -need be- get a court order against their isp to fork up the details (make sure you harrass the right one) 2: take that entity doing it to court...

if it's not 'illegal' or 'criminal' where they just so happen to operate from... bad luck for you. they can do as they please. live with it.