Sure, wait until they have to disclose it. If you are a heavy player and want to buy, why wait for a light volume day though? Makes little sense. I think it is more likely that it was indeed a pump and dump scheme by -buy- someone.
The better question to ask though - (I think I will as soon as I get done writing this response) - is to ask ScotTrade (or Ameritrade) what triggered their STOP on internet orders. When I tried to trade early on the volume was in the 100's of thousands rather than millions. I will now wait until the company has a chance to respond.
News 
Market Data 
Discover 
