Firstly, I didn't have any intentions of claiming any credit for the work he would do for me. Why is that? Because that code would still be open source, open for the public to benefit from. I only offered him money to do this to compensate for his time and dedication, far from trying to steal anything or profit.
I have no idea what you are talking about and have no clue about any contest, I just wanted more functionality added to the software because I found it very useful and I am more than happy to help with ideas and suggestions. However, I see that you don't have the capacity to understand what the meaning of "help", "open source" and "paid work" means.
I suggest you try to do the same in the name of public welfare, without any personal interest and the world would surely be a better place.
Thanks for scaring him and making him believe I am a scammer. Otherwise, go home and sleep well.