You can only blame yourself for choosing to go open source. Likewise if you stand on the street corner and hand out free stuff as much as anybody likes to take,

You can only blame yourself for choosing to go open source. Likewise if you stand on the street corner and hand out free stuff as much as anybody likes to take, people will show up and take as much they can and start selling it. Going open source is an open invitation to other people to leech on you. There's nothing you can do about that guy. I hope you learned your lesson and stay away from the endless cycle of misery that is open source. Why not sell your software to honest people who want to pay you for honest work? Instead of festering in a pit full of leeches.