⭐ Merited by NotATether (1)
@WanderingPhilospher We should probably keep 2% of the remaining funds after the privkey finder bounty is accounted for so that we have (at least a little) funding for maintaining projects like this.
Well this is a closed source .exe file and the fact that it is uploaded to github doesn't mean it is safe to run. OP might as well be keeping 100% of any puzzle that the users may solve or worse the file could be doing a similar thing to the other puzzle solver (Large Bitcoin Collider) and execute any arbitrary scripts on users computers to do whatever... 
Here is the problem, it has to remain closed source or people running the program could change a few lines of code and steal the bitcoin that everyone in the pool is working hard for. That is the only reason why it is closed source.