You really believe that if one was so inclined, that you couldn't find a crooked broker or two in the whole Market?
Who cares if the broker is "crooked" or not? The trade must still be brokered and documented. If the MM can't comply to SEC Rule 17ad-10, the overissuance will have to be covered by the MM.
Besides... the SEC recognizes that Naked Shorting/Share Counterfeiting/FTD's exist, & I rather believe them over some anonymous Stock Message Board poster with questionable motives!
Sure they "exist", but generally it is the result of insiders using unregistered shares to hedge a short of their own stock. Since they do not disclose to the SEC, the dilution is blamed on naked shorts by the scammers. SEC Rule 17ad-10 defines this kind of shorting as "securities not readily marketable". It is what hedge funds do. The unregistered shares are used as a hedge fund by the insiders. Then the scammers cry "naked shorting". Old scam.