I don't know of a good way except to call them out publicly and label them what they are. 

Also important to build strong communities that refuse to accept that shit and then outlast the fools who get swindled by them. 

There is no short term solution that doesn't feel like hacking at the branches, imo. But long term I think consistency of message, calling them out, and showing and reminding everyone of the outcome over and over is the only decent option on the table. 

 Two parts to this:

1. Call out the scammers building rigged things on a rigged system. Concur!

2. But this is also bitcoin's birth right, that they have taken away, and tainted.  Bitcoin's next great step should have been to facilitate free markets.  We are somewhat paralyzed by the fatigue.

Does (2) make sense to you?