1) i not think PBMining as a scam, because it is not a wise buiness model for such a high profile ripoff. Better steady but lower income and keep it clean.
Why don't you ask Danny Brewster, Ryan Kennedy, Trendon shavers, Bernie Madoff, and so on, why they decided to go with a "high profile ripoff".
Well for one, you could stop promoting this extremely shady operation to other cryptonoobs who don't know any better.
You could also join the ranks of people who refuse to invest until the company has proven they are actually mining.