Many bots in 1 lvl. Tomorrow Fixed problem and raise earning rate.
What u mean by bots here?!
automated scripts
Then maybe don't increase earnings for free users tomorrow, they anyway will milk it.
It´s a terrible idea to increase the earnings of free users. The lower their earnings the more incentive they´ll have to cough up money and upgrade. It´d be an excellent idea to increase the earnings of paying customers. The more they earn the easier it´ll be for them to upgrade to a higher level.