That's way more users than I ever expected there to be.. Average of 10/day/user seems accurate, right? 1500*0.00015 = 0.075/day budget. Seems that yobit is ready to pay $10k (minimum) a month for this.
Why are you giving them free advertising?
I saw from a bitcointalk post that they received 0.0003
BTC per post (first time) and now they are receiving according to the announcement rate. Also, I saw there that negative trusted user getting payment from there. I think yobit has a bug that's why negative trusted users getting payment from them. So, it is not free and thinks yobit will soon stop to give payment to a negatively trusted people.