Ok, here are the options:
1. I got a request from a member who looks trustworthy. He could create a new anonymous account at bitcointalk, take over the pyramid and develop it. He is likely to preserve the hierarchy and protect the interests of existing members at the same time making the Pyramid more attractive to the newcomers.
2. I can try to auction the Pyramid with starting price of 10K USD in Bitcoins. Not sure if anybody would buy it, but if it happens then every pyramid member could get a compensation based on the average USD value of his/her deposits (at their respective dates).
3. I can auction the Pyramid with starting price of 100 USD in Bitcoins and partially compensate pyramid members based on ~USD value of their deposits.
Why are you bringing fiat/USD rates into this equation ?
Because payouts should be proportional to the value transferred into the pyramid. Bitcoin is too volatile to be a good measure of value yet. USD fits better (ideally we should consider USD inflation too, but it is not that significant).
Which option would you prefer?
If I auction the site, I don't know who will win the auction and if that person would preserve the hierarchy. That's why compensation is important.
But probably there are members who lost their bitcoin addresses or don't want to be compensated. I could give some time for members to claim their compensation and after that I could compensate only the ones that did so. Should I require to claim a compensation? If yes then should I require the claims to be signed by members' withdrawal addresses?