The virtual currency is looking increasingly beleaguered, and its price had been dropping steadily in recent months. . . . It is a reminder of the security issues that face any virtual currency seeking mainstream adoption, and it brings back memories of the infamous exchange Mt. Gox. . . . Combined with bitcoin’s reputation as an enabler for criminal activity, it is likely this public-image problem is hindering mainstream adoption. As one commenter on the discussion board Hacker News remarks, bitcoin is an “even worse” investment than gold.