[matvore]

  > Who can argue with amazing arguments like "Bitcoin is the 
  > money of the future because it will allow a fraudster to keep 
  > the proceeds of his crimes!"

The benefits outweigh the costs. Fiat currency is used for plenty of bad things, like funding wars and proxy wars. It would be a net gain if, for instance, fraudsters were a little more able to steal from gullible people but governments couldn't fight as many wars. Gullibility can, with proper education, be fixed, after all.