<i>&quot;The Bitcoin world seems to have an awful lot of incompetent fraudsters.&quot;</i><p>Yes, it does.<p>The upside of this is that none of them have been able to break the basic blockchain mechanism and profit from doing so.  That&#x27;s an impressive achievement in computer security.  It&#x27;s the reason that blockchain technology is now being looked at as a way to record transfers of high-value bonds and such.