We're getting exactly 15GH/s, everything above that is pocketed by PetaMine.
Well, the deal in new IPO is 15G/s per share sold, so I can not blame them for private hashing with the rest of hardware (if they already bought 1500TH).
Me neither. I guess I just take offense at the last line of their mail "Now lets sell this IPO." ("... or don't cause we don't really care either way at this point!")