[corford]

>3. Another easy solution is to have these ICOs hold the proceeds in escrow and release of funds quarterly for five years to the startups/projects and giving the investors the ability to refund half or 75% of their remaining commitment (i.e. a 25-50% penalty for leaving the project early).

I've seen something similar to this in another ICO. They set up an ethereum smart contract that would distribute 90% of funds raised to the project over 4 years. If an investor wanted out, they could send their tokens to the contract and (iirc) it would burn them and refund the investor with ETH at a 10% haircut to the original buy price. Alas can't quite remember the ICO or the exact details (it was in a random whitepaper I read).