The WBC is a law firm that exploits the Civil Rights Attorney's Fees Award Act of 1976. They engage in acts that provoke people to sue them. When they win the case on First Amendment grounds, they then collect a jacked up fee for their legal services from the opponent. This is why they never do anything outrageous in their home state. They need to be in federal court for the 1976 Act to apply.
What Anonymous did is exactly what the WBC wants. They want publicity and notoriety so that they increase the number of parties that will sue them or in someway violate their civil "rights".