Right now the MHs held by users is only worth 165 BTC since the price of MHS is currently at .00033 BTC / MHS.
Can I ask where did you get this data from?
How do you know how many total MHS there are in the ledger, both for sale and in individual accounts not for sale?
He's just multiplying 500 GH/s by the current price. Because admin would never lie and would never sell more fake MHS.
Considering you were claiming there was around 6 THs, I would say the Admin was much more honest on that point. Anyway, it doesn't take much effort to verify 500 GHs is much more likely than 6 THs. Since the conversion there has rarely been more than 100 GHs on the asks. Right now there is probably about 35 GHs up for sale.
Also there is a small but important point that we know how much BTC has been deposited at the site. ( < 45000 BTC over the two deposit hotwallets) That really sets the upper bounds of what was sold. 500000 MHs at .01 BTC/MSH is 5000 BTC with is believable. (.01 BTC/MSH is actually a low end value, probably closer to 8000 BTC, plus that isn't counting the GPU KHS. ) I know there will be some pretty stupid math using all the BTC from the hotwallets, most likely most of that BTC was already withdrawn. Withdraws worked well until a couple months ago.
As far as who said what, right now we don't even know if Marcello is the Admin or if there even is an Admin. That is pretty grim.
Deposit Hotwallets
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https://blockchain.info/address/19mcjofGwKxGwhaZwDwPjdWd1KrFCZgoJJ (6000 BTC & growing)
https://blockchain.info/address/1HWqsgnSd12Gv8SpoUMi1Cj8hp79BTSpW7 (38657 BTC)