While you raise a legitimate point, I think you discount the basic fact that, on balance, most individuals behave in a trustworthy manner. Society depends on this fact. We trust people to drive cars, and not intentionally run people down. Stores trust that most individuals will not shoplift.
Will there eventually be a large scale case of someone untrustworthy duping people via crowdsourcing? Probably. Does that mean the model is fundamentally flawed? No. Plus, crowdsourcing spreads the risk around so the loss is minimized. It's not like Bernie Madoff who insisted that investors invest all their funds through him.
Will there eventually be a large scale case of someone untrustworthy duping people via crowdsourcing? Probably. Does that mean the model is fundamentally flawed? No. Plus, crowdsourcing spreads the risk around so the loss is minimized. It's not like Bernie Madoff who insisted that investors invest all their funds through him.