DashCon (2014)

DashCon (2014) collapsed more spectacularly than any other Tumblr gathering, leaving attendees with an infamous "extra hour in the ball pit" instead of promised panels. After headliners cancelled en masse, only 1,200 of 2,500 expected fans attended, yielding a $30,000 loss. This disaster outperforms #6 TanaCon in sheer disappointment per dollar, as TanaCon at least offered tangible chaos for money, while DashCon's $25 ticket delivered 40% worse value in empty promises.