The best way to prove your good faith is via the following arrangement.
You offer sophisticated investors (i.e. wealthy individuals) the option to enter into the following legally binding contract:
The investor buys x bitBTC from you for now at the current market price in terms of BTC.
You agree to repurchase the investor's x bitBTC at the exact same price at some time in the future. You have the option to choose any personally convenient time between 1 and 6 years of the initial transaction. You can repurchase the bitBTC all at once or gradually over the 5 year interval. It's entirely up to you.
In exchange for this offer, the investor agrees to pay you 95% of the interest generated from holding bitBTC between now and the time of repurchase.
It seems like a great deal for you.
1) The market price of bitBTC in terms of BTC is supposed to remain approximately constant over time.
If so, surely you can find a future period in the next five years when the price is similar to current price, no?
If the price is volatile, that is actually helpful for you. You can just repurchase during downswings in the market earning a tidy profit. If the price is exactly constant, well you can't earn any profit, but you don't take any risk.
2) The investor is depositing x bitBTC worth of capital in your prediction market. Somehow this is generating returns, right? Normally you pay 100% of these returns to the investor, but now the investors is generously offering to give 95% of his returns to you, keeping only 5% for himself.
3) If you don't think investors will take you up on this, you can also offer the regular deal as another option (100% of the interest, but no repurchase agreement). Investors can just choose whichever deal they like best. At worst, people will just not do the repurchase agreement deal. At best, you will end up owning almost all the bitshares in existence while simultaneously attracting more capital investment than under the original arrangement. Seems like a win in every direction for you.
What about the investor?He earns a guaranteed risk-free return on his BTC. Sure it is only 5% of the extremely low risk return you were initially offering, but the investor gets a lot of piece of mind. He doesn't have to worry about the pesky BTC/bitBTC exchange rate anymore.
What if you run?Well, you could put up some collateral (e.g. your homes) and use a formal legal arrangement. Or you could find a trusted escrow to hold on to a BTC deposit from you. Then the investors won't have to worry about you skipping town.
As long as the issue of you absconding is taken care of, I would place all the BTC I own in this investment without a second thought.
If you promise to offer this contract via trusted escrow for regular guys or via collateral and formal legal arrangements for sophisticated investors, then I will never say anything negative about bitShares again. (as long as you make good on your word)
So how about it? Are you willing to do this for me and other potential investors? If not, please explain why not.