There are easier ways to stop Anonymous. You could try addressing their concerns for a start, and "not being total arses" couldn't hurt either.
So there are times when it works and times when it doesn't, but we can be pretty sure it won't work here.
That's what is so vitally important about the amorphous collective form of Anonymous and even later Occupy Wall Street. Without a clear head to cut off or discredit the movement can continue with its goals even if it loses a few people.