What lessons we can learn from this debacle?   Were the Skeptics Right?   "Self-taught options trader Karen Bruton (aka Karen the Supertrader) earned so much so quickly that some skeptics doubted her. In reality, the SEC says, she improperly concealed more than $50 million of losses."   The new allegations paint a very un-uber portrait of Bruton, 66, a self-taught options trader who mesmerized fans and flummoxed skeptics with her life story of parlaying a $10,000 initi