I saw and brought attention to his OTC "pump-and-dump". It turned out that he was an active investor in and advisor to the company (I think it was Gunnar Optiks) and it seemed to be mostly an honest mistake.
He was trying to encourage people to buy stock in the company, but it did not appear that he was attempting to pump and dump the stock, and it did not appear that he was aware of the potentially illegal nature of what he was doing.
Basically he was treating it just like he'd tweet and tell everyone about some new artist that signed to his label.
