I am glad to see those who were locked are starting to be unlocked.
On a related issue (And IANAL) in the UK it is a criminal offence to knowingly buy a stolen item, or to knowingly accept payment in stolen money.
It is not a criminal offence to Unknowingly receive them, but as they are stolen, they did not belong to the person who sold/paid-with them, so they get taken away, and returned to the rightful owner.
You only get your money or items back if the police find them.
So in this case, as I understand it (purposefully making no reference to any individual), if someone bought an item off an avi (using "stolen peds"), firstly MA will try and find out if the selling avi was Knowingly receiving stolen peds.
Account gets locked for investigation.
MA finds no proof in their logs, that person is innocent.
Account gets unlocked.
However, the Selling AVI does not retain the right to keep the peds, as the peds did not belong to the person who paid with them. (under law, in the UK, AFAIK, and remembering IANAL).
This then causes MA a major pain, as the have stated "All trades are final" so many times, some of us have it tattooed on our butts.
MA have no choice but to leave the "stolen" peds on the cards of those who received them. (which seing as the fault really was MA's to start with, is only fair.)
Assuming the actual cause of the whole episode is what it has been assumed to be.
And remembering finally IANAL!