The only part of your first answer that I disagreed with was the assertion the most pinks are not even eligible to be on Reg. Sho. Pinkies by definition don't have to file with SEC but some can nevertheless be registered with national clearing houses, which can get them on Reg. Sho.
Further, there are quite a few pinkies that have fallen from grace (i.e. used to be BB stocks that filed with the SEC). They may not be registered but because of the previous filing status can end up on the Reg. Sho. Then there are the companies that were never required to file but simply chose to do so; they would be pinkies eligible to be on Reg. Sho. simply for having made one or more SEC filings. For these reasons, the assertion that most pinkies are not eligible for the list strikes me as far from being a given.
PMCL is a pink sheet stock currently on the Reg. Sho. having not filed with the SEC since 1999 when the company had a different name. And PNMS could, in fact, be on that list as well, since it too filed with the SEC under a different company name - also not since 1999.
You have answered quite well why it doesn't bother you that MT and company believe there's a huge short but the stock has never been on Reg. Sho. That was really the only question I was asking.