Your view is contradicted right in the title of the link you provided,
Nope. Try reading what I wrote again. I'm not very interested in who you consider to be a "bona-fide" "market maker". I am interested in who is on the list of organizations that are allowed to use the special market maker rules.
I was very clear about this because I figured someone would try to define the issue out of existence by simply saying "those weren't real market makers!"
The link that I posted is proof positive that:
1) A "market marker" has engaged naked short selling of a significant scale and duration.
2) The "market maker" was flipping the trades between connected entities to reset the clock on delivery.
Predictably, the response is not "Wow I thought a market maker would never do that. Maybe blind faith in hundreds of entities isn't 100% justified."
Instead it's "Well that wasn't a real market maker."
They were on the list, so they were considered a market maker. End of story.
If you're using the fact that they were caught abusing their status to retroactively claim they never had market maker status then you're just being ridiculous.
In the Wolfson case, the market maker was caught abusing their status and eventually (6 years later) forced to pay a fine that was modestly more than the profit that they made in the first place. (fine was less than 50% more than the alleged profit ) No jail time for anyone, and the longest suspension from trading that was handed out was a whopping 12 months.
They counterfeited tens of millions of shares and they didn't even do Martha Stewart level jail time.
The fine worked out to significantly less than $1 per counterfeit share.
I have come across no mention that any of the shareholders who lost money as a result of their actions received any compensation.
I think the SEC documents for the Wolfson case actually do a decent job of answering the question that started this thread. I doubt that Wolfson managed to single-handedly counterfeit more that total number of pre-existing shares in any particular stock, but I would expect the techniques used to try and hide such an activity and the end result would be similar.
The SEC documents are quite detailed regarding the mechanics of the transactions:
In particular:
1) “reverse conversion” or “reversal,”
2) "reset"
3) "assist"
All of the above involve options trading, so perhaps it may be worth considering the available options data. Someone else probably has a much better understanding of what to look for, particularly in a volatile stock.
Perhaps the sale or large amount of deep in the money calls or puts every 12 days would be a red flag. Over a long enough time period, that behaviour might be readily detectable. A more sophisticated scheme might be much harder to detect.