@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... 
I'm working with the OP and two other people in our group DM on discord - I'll ask the other two if they've seen the source (@yoyodapro is the one compiling so he should at least know about it).