Edon is a scam. Some Russian dude lost 220 bitcoin to it by not going thru bittrex.
And that explains why the 'dev' ran off. 220 BTC ~= close to $100,000. Since the feller figured he wouldn't get the money from Trex, he called it a scam with the hundred thou.
Tho' I do have to say - given certain rumours that float around & given that Bitcoin is technically a black-market good in that jurisdiction - stealing 220BTC from a Russian means that the feller has taken (shall we say) a personal risk.
People who bought thru bittrex will get their money back.
Good on Bittrex.