Now a day ICO offering 2 stake 3 stake for signature campaign, it's just ridiculous . It's become waste of time . Also, after complete campaign need's wait for long time to get coin. May be number of participants increasing day by day. But all the company need's pay according to our time & efforts. what's your thought about this tropic ??
I do not know exactly how it is working but I assume that 1 stake is equal to the dedicated money for signature campaign from ico gains divided by the number of participants?
In that case isn't what you earn depending from the success of the ico? So in fact too much users are joining a signature campaign with variable earnings that could be not very important so finally this explains why your earning is decreasing.