Ahh here we go again with the threats, this time against your own patrons. Seriously, I really thought you had learned by now that you only hurt your reputation (and by extension you purse) when you try to put the screws on pirates.
Just be cool and let it happen. Look at all the games on this site. They all get leaked, and the most successful ones are often the ones where he creator actively participates in this community, leaking be damned.
Most people only support a creator when they think that he deserves it, when he creates his game out of passion, not just as a means to milk it for the maximum amount of money. Putting those kind of restrictions out there makes you look greedy. People will take notice.
If you don't know it yet, take a look at the thread of Darth Smut's Death Star Trainer. It's a nice read and shows why you really don't want to go down the same road.