Q For renters: I tried to point my miner to nicehash, pool was "enabled" and "live" but nothing resulted, just rejected work.
I guess I don't know how to work it or maybe you need to wait more than few minutes to rent it out. I waited 20min with zero results, switched back to regular pools.
In any case, payouts already declined 40% comparing to 12 hours ago.
The 40% decline / rejected work may be because paycoin.minerpools.com was down today due to DDos attacks. Maybe renters were waiting for the pool to become available again to rent gear. I'm not sure, but that may have something to do with it.