Wikipedia
DashCon was a fan convention catering primarily to users of the blogging service Tumblr, with a particular emphasis on fandoms. Held over the weekend of July 11, 2014 in Schaumburg, Illinois, the inaugural convention quickly became infamous for allegations of mismanagement among organizers, an alleged abrupt demand by the hotel for an upfront payment of cash for use of its facilities, and celebrity guests being forced to drop out of the convention after they were informed by the hotel that they would be responsible for paying for their rooms. A small ball pit placed in one of the halls became a meme after organizers offered attendees, along with raffle and concert tickets, an "extra hour" in it as reimbursement for a canceled panel.
Organizers for DashCon initially stated that they were going to hold a second DashCon in 2015 despite the issues faced by the inaugural edition, but officially announced via a Tumblr post in September 2014 that DashCon LLP was going to be dissolved and all its assets liquidated, meaning that they were not going to hold a second convention. The post also denied claims that a similarly themed convention, Emoti-Con, was a re-branded DashCon.