Back in August, Edwin Dorsey, author of "The Bear Cave" financial newsletter, warned about a rash of pump-and-dump stock schemes being spread through chatrooms and revolving around thinly traded China-based stocks.It looks like his dire predictions are coming true. QMMM stock is plunging Wednesday. Watch the price action here. The Background In early August, Dorsey released a report detailing the scams which operate through hundreds of groups on WhatsApp and other social media. You May Also Like: Oracle Sto ...