I'm curious if there are any solutions out there to secure investor funds (and player funds) on a site like https://just-dice.com/.

I asked dooglus, the sites founder, if some type of multisig would be possible and this was his response: "I'm not sure how that would work, if you mean the investors should keep control of one of the private keys.  An investor could withhold their key and refuse to pay out a winner on the site.".

There are currently 41 000 BTC invested in the site with absolutely nothing stopping the operator of leaving with the funds.

If no solutions are currently possible, it would be nice if we started a discussion on how we could solve this problem.