I think it is not a scam.
It seems quite logical that electroneum first pays the sold tokens, then starts the maining, maybe next will be the payment of the bounty.
Of course, I also hope that this will happen quickly.
But if I got it right part of the bounty rewards was paid a month ago... and they just forgot about rest of us... Not even telling us a reason why we are not paid or when we are going to be...