That dev comment is just plain sad. If you're selling enough copies of your game to make it worth all the trouble of making it why does piracy suddenly make it not worth it?
I guess in his mind if piracy goes up then that means sales have to go down but I can't remember the last time I looked at a game I wanted to buy and said, "Well let's go see if I can pirate it first..." Assuming the game is priced correctly I'll just pay for it and be on my way.
Pay attention to your sales. That should be what you make decisions based on.
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