Yes, definitely. One of the really interesting things happening in the startup space right now is substantially increased transparency for advisors and investors. E.g.: https://www.leanlaunchlab.com/

On the other hand, there's a problem with publishing too much information: competitors. If for a modest investment I could buy access to the details of our compeitors' QuickBooks accounts and product plans, I'd do it in a heartbeat.

Still, I agree with your basic point; publishing information is so much cheaper and easier than in the past that we can shift radically in the direction of increased transparency without imposing significantly greater costs on businesses. If that increases the pool of capital available for innovation, society will be net better off.