This thread seems to more concerned with denigrating famous people who call themselves Buddhists, than with protecting the true teachings. Denigrating others is not the same as pointing out what is Dhamma and what is not Dhamma, or pointing out what is Vinaya (following the precepts), or what is not Vinaya (selling marijuana etc.)
Those who have followed Buddhism for a while know about some of the wacky comments made by some famous Buddhists, or the dubious practices of some well-known monks and Buddhist teachers, but I don't see how discussing this dubious behaviour is helping to protect the genuine teachings.
IMO the essential quality of a Buddhist is right view. If one holds the right view that all beings are the owners of their kamma and that the Buddha was Fully Enlightened, then one can rightly profess to be a Buddhist. Along with that goes the obligation to follow the precepts, but all who are not Noble Ones are liable to fail sometimes, so failing to fully observe the five, eight, ten, or 227 precepts does not mean that one is no longer a Buddhist.
In Buddhist countries, there are Buddhist fishermen and Buddhist farmers who raise pigs and chickens, or who kills snakes and vermin, etc. There are Buddhist soldiers, actors, and comedians. Just like Buddhist doctors, Buddhist monks, or Buddhist meditation teachers, they have varying degrees of faith and wisdom.
Let's leave it to others to decide if they wish to be known as Buddhists or not. If you want to protect and promote the real Buddhism, lead by example.
• • • • (Upasampadā: 24th June, 1979)