I will make couple of spends on DoubleDROP.xyz to test it out and support.
Just tried with 10 myself
Good luck

Careful guys these always end in tears for someone. Stake rate is astronomical anyway
well I started with 1 free coin on yobit. Left with 10 after dice sent them to ponzi.
Its pretty unlikely 10 will stake anyway so what the hell, nothing to lose

Morally these guys are pretty honest that its a ponzi so anyone participating gets what is deserved. No different then gambling IMO anyone whom complains would be foolish.