This is on IRC from the admin dude:
Contract 1 offers $0.225BRL/kWh, contract 2 offers $0.18BRL/kWh. To avoid repeat, will likely do contract 1. Expect approximate doubling in current rewards, update on Tuesday
Pump&dump.
People believe the high reward is coming back and buying more with fresh money because they believe the price will go up and they want to buy before..
Admin will make a lot of $$$ while dumping a shitload of fake hashrate into your buy orders. Happy money burning. See you in some weeks