Crowdsourced funding via cryptocurrencies is a viable practice. A lot of good ideas and innovative companies are coming out of it. This segment is creating thousands of jobs and companies all over the world.
Owning a token bestows a right that results in product usage, a governance action, a given contribution, voting, or plain access to the product or market.
Most blockchain platforms don't share that much in common, resulting in choice lock-ins, lack of interoperability, and potentially dead-ends that are hard to untangle.
The token itself is not your new business model. What the token enables for you and for your users is the key part to focus on.
Cryptocurrencies are not evil and are not for money launderers and scammers. They are for entrepreneurs, technologists, change-the-world dreamers, and anyone who believes they can (and will) enable new business models, new types of organizations, and new ways to service consumers and businesses alike.
In my opinion, one of the most exciting potentials of the blockchain relate to creating new business models, whether in public or in private settings. In most of these cases, the new models don't care for incumbents because they are mostly on a disruption quest.
