Yes, my main point there was just that the IRS accounting rules do not govern, but my post was poorly worded so I deleted it and will start over.
Looking into the SEC Complaint at
https://www.sec.gov/litigation/complaints/2016/comp-pr2016-98.pdf
it seems her private placement memorandum simply defined the investor's capital account as being affected only by realized gains and losses. So when she reported account values to investors, it excluded unrealized losses. Fees were also based on realized gains only. You could actually withdraw your full "account value" without regard to unrealized losses (making this a true Ponzi scheme, as noted by others).
An NFA audit told her in August 2013 that she had to report NAV's, and she began doing so then in tiny print on a later page, but she did not change the capital accounts valuations which were reported more prominently. An interesting question may be, did the NFA auditors approve this (unsatisfactory) level of disclosure as an adequate remedy?
In summer 2015, she realized the losses and the capital accounts took the losses finally.
I wonder if we need a regulatory change to prohibit basing account valuations or fees or withdrawals on any measure other than net asset value (being very clear that this includes liquidation value of all option positions). Looking at the SEC Complaint, it seems to be based mainly on failure to disclose material facts, a fraudulent trading scheme etc. It does not appear to allege that this method of accounting is per se illegal! Hmm, could it be that that is because (some) others are doing something similar? Also it does not sound to me that the regulators/auditors were completely on the ball here in 2013, when they could have caught and stopped this. Of course, NFA is industry self-regulation which is not always as strict as would be best.