...was mabsark invested in any of the securities that were behind any of the scams that were called out?
Of course! Several. Why do you think he left me negative feedback?
if you can document this then it seems that he has a history of using trust to further his own financial incentives. He is using trust to prevent securities that he ownes from declining in value.
Not sure how this would work. He was "invested" in NeoBee and Active Mining, but he can always claim that his feedback was unrelated to these "investments."