Escrow or no one plays. Simple as that.
I think you still owe me for topping the one before the one before this one.
We didn't reach the minimum amount of bought levels to be able to payout. This time, we lowered the prizes and upped the fee for answers. I hope that even things out so it can run smoothly.
There is nothing in the rules on your site or in your OP that say anything about a "minimum amount of bought levels". There is just a payout structure. Are there hidden rules? Seems shady.
Also the price per hint on your linked site says ".005
BTC" while your OP says ".01
BTC". Seems amateurish.
Edit: Looking at your history it seems like this is the third time you've tried to run this. Looks like the past two times you've not payed out the amounts promised.