Coine, if you are offering clear, good and legitimate tool and you don't charge money for it. Then why are you so strongly against making it an open source?
I would understand if you were selling this bot, but otherwise - not going for full disclosure with open source is a little strange for me.
I have answered this question before. The reason right now is that the API is not 100% secure. By giving away the source code I compromise the users information.
I will turn around the question and ask you instead. What would you do with the code if I open sourced it?