Shunning
In many countries, religions get huge financial advantages by being recognised as religions. They are not taxed, or have much reduced taxes. In the United States, the Establishment Clause of the US Constitution prevents the US government and (through the Bill of Rights) the 50 state governments from imposing church taxes. In 1947, the US Supreme Court ruled  that "No tax in any amount, large or small, can be levied to support any religious activities or institutions, whatever they may be called, or whatever form they may adopt to teach or practice religion." This explains why organisations such as Scientology wish to be classified as religions.