Great idea but 5 mBTC is not even that much
0.4 mBTC now it seems.
0.0004 BTC. That's like ~0.34 cents ( one third of a cent ) at the current BTC price?
For five minutes work. ~4.1 cents per hour.
And it says *up to* that amount. What is the minimum?
Free? Maybe for someone who doesn't value their time.