Wow, the naivete on this board is startling.
Do you realize how much the entire stock market is manipulated and rigged by the big players and market makers? Do you really think they play by the rules when there's "no sheriff in town" so to speak? The SEC is so far behind and so understaffed that they catch a tiny tiny fraction of the offenders, and when they do, they fine them a paltry few million dollars when they have made tens of millions if not more off their practices. They don't even police the pinks, they're getting too embarrassed all the time by the Madoffs that are getting past them to worry about $10,000 pink sheet transactions.
MM's have always and still continue to naked short especially in the pinks where they can do as they please without fear of consequences. In most cases they plan to NEVER cover and if they do they know how to run it up and down to shake out what they need to still make profit regardless of which way it eventually goes. But they know in high probability that most of these .000 stocks arent ever going to recover so whenever they get a "buy" order they take the cash and tell you you own it and never worry about actually covering. Free money to cover the annual office christmas party.
Now YOU and I cannot short these, you are correct. WE have to play by the rules. But if you think the HOUSE is playing by any rules then you probably also think the games at the carnival are all fair too...LOL