I am long ATEC. I am on a number of forums, including this one, that follow ATEC. I've not seen a single "popular forum head" say anything. Much less anything that would cause a run-up in the stock. There may be some "dump" going on, but I don't see any "pump."
No class action lawsuit is possible. The company and the people who run it haven't sold any stock, haven't taken any money out of the company, or lied in company filings. Additionally, there is no pot of gold to go after. No cash balance, no unencumbered assets, and the people who run the company are not deep pockets. Your statement that you purchased at .0005 says it all. Anybody who purchases any stock at .0005 must be prepared to lose all their money with no recourse. You knew this wasn't NYSE or Nasdaq when you bought. Still might pop to half a penny. We'll see.