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So how is it different from Bitcoin? Except for time scale? Is it the dump part?

• pcwalton 9y ago
  Promoting investment in Bitcoin can (in theory) be legitimate if you sincerely believe that Bitcoin has real value. By contrast, pump and dump schemes involve lying about a security you know to be worthless (or at least worth far less than what you're saying). The fact that you dump it immediately makes it easy to prove this.