I was just re-reading this and noticed the second to last entry:
"2. Manually via Ex-Clearing. Ex-Clearing is a manual comparison process that is performed by the brokerage firm’s Purchase and Sales Department. Unusual short coverings can end up settle this way "
Strange to introduce that loaded topic into the conversation I'd say.
FWIW ....In my experience, I have seen t-trades used as Market makers for a particular issue expand or contract. They are swaps between brokers..... my guess is that someone wants to stop making a market for this (as it is worthless) and wanted to get their shares off the books.
I have also seen them used as camouflage for dilution.
Neither bode well for this issue which has been completely dark for a year now....nothing to see here.....move along for your own good