If he believes in his ideas, then constant repetition is exactly the way to go. It's all a number game - have to get into as many heads as possible. This was the first time I've seen his message, and it's definitely one I agree with.
I think it is important to fight back using the same weapons as your aggressor, so anti-SOPA legislation seems like a good tactic. In a perfect world it would not be necessary, but this is an imperfect world. If someone is repeatadly beating you with a stick, ignoring your protests, after a while you have to consider picking up a stick and hitting them back.
* with the hiding of comment votes, how is one able to publically express the support of an opinion? I guess this is a special case where if someone is telling another to quieten down, it is ok to chime in...
edit: the stick analogy and toning it down