Well his claim to not be able to refund everybody is bollocks. He need only divide the btc he has left from the quarter of a million dollars you gave him by the number of coins in circulation and he could use that price as the buy-back level. That way everybody who wants to recover some of their money can do so and those who want to chance it with people who lied about using bought accounts and sold them a cheap web-script dice game, are able to leave their money with the fraudsters.

By stating that he is only negotiating with the ten largest holders he is essentially letting them choose to walk away with no loss while the rest of you have to just swallow whatever these crooks deign to give you from this point forward.

Even then you have no proof the coins he is 'refunding' aren't mostly his and the other 'dev'. Considering they lied to you from the outset, what reason do you have to believe them now? They've had more than enough opportunity to move the market up and down intentionally to play you all and accumulate cheap coins they can now sell back to themselves for your btc at ICO price and walk away as just an 'honest investor who got a refund'.