decided to test this, ran on a machine that was doing 38Mh/sec (no wallet access) ran it for 1 hour exactly, what I noticed is that nanopool reported my rig online and reported hashrate of 38.1Mh/sec though actual now stats read as 0.0Mh/sec and my actual shares dropped, so I am pretty sure he is actually stealing your whole mining power to his own wallet.
Dude you are full of shit. Anybody can see if he steal from him in 5 minutes it really makes no sense why would he make 13 days plan when he is planning to steal your hashrate in first hour? I think you didnt even test it. I have tried it yesterday and I have been using it for more than 12hours without any issues. My rig performed completely normal exept I got another worker as bonus just as he said. I have monitored his software if its doing something strange but it didnt find anything also it never connected to internet it seems like its doing just some modification to your miner process. Also I have looked in the miner log and you can see exactly where all your shares are sent to maybe you should check that too. I am puting this program on all my rigs today I hope OP will enjoy it as I have 18 gpus so he will definetly get something from it. I will post back if his shares doesnt decrease from 5 to 10 in two days. But good job so far I am happy for you and your fee system makes much more sense to me than original.