I really was hoping they'd respond with where they got it from....
I understand why this would bother you so very much. You put your heart and soul into a game, and someone unabashedly discusses stealing it on your own forum. I cannot imagine the feelings this must evoke, so I am impressed by your ability to stay calm and reserved.
Personally, I find it hard to condemn him on the principle of piracy. I have done it before and I will likely do it again. For me the issue is one of practicality - if there is no way for me to try something before I buy it, my likelihood of finding alternative ways to try it before spending my money is directly proportional to its cost - feature-full game demos are a great way to try a game, and if one exists I would not consider downloading it. For me though the term "try" is not just an excuse. If I spend more than a short time playing it and want to play more, I buy it. For me it is a real vehicle to finding games I like and want, and wish to further enjoy.
I tend not to do this at all when I recognize the publisher and/or developer to be small or independent, and in need of support. I am of the mindset that if we don't make a concerted effort to help the "little guys," as it were, diversity and innovation in the gaming industry greatly suffers. So most games from Stardock, Shrapnel, Matrix and so on I will buy sight unseen - some I have purchased even though I had no idea if I would ever like or play them. It is my way of giving back. Sins was one of those games - I absolutely loved GalCiv and GalCiv II but can't stand real-time "strategy" games, so I normally wouldn't have given Sins a chance. But for some reason I convinced my girlfriend (who is also a gamer) to go in with me on this as I had heard good things and trusted the publisher, so we purchased two copies and have not regretted it for a second - it has given us countless hours of enjoyment.
The second reason I would and do pirate something is when I have a legitimate copy of the game and need to do something that I no longer can, or am restricted from doing by the DRM, that I feel I should be able to do. For instance, I had a game on DVD that got scratched to hell but needed to reinstall on a re-formatted PC, but it wouldn't read the disk. Upon contacting the publisher they told me that I would have to purchase a new copy, but they would throw in a 20% discount for my trouble. (The benefits of digital download, eh?) So I ended up downloading a torrent of the game. Coincidentally, the game was the Fallout Collection, and shortly thereafter I heard about Good old Games, another company worth supporting, and purchased a new copy of Fallout for a fraction of the cost of the DVD...digital download, re-packaged to work on XP and Vista...I couldn't be happier.
Reading this objectively, it sounds like one big rationalization. I could just as easily (or more easily, truth be told) have said that I and my girlfriend bought the game and down with those who don't, but that wouldn't be intellectually honest of me. I did, but I understand those who sometimes cross the line. I don't understand those who cross the line intentionally knowing that they will never pay for the game they are stealing. Nor can I relate to someone as a human being who would actually think their piracy could be used as a tool for steering development.
I don't know...Perhaps you, a developer, looks at someone like me and says "you're a pirate." Period. No grey area. That intent and execution make no difference, anyone who downloads something for free is in the same boat. I would definitely understand that point of view. However, I look at my recent experience with EA technical support (if you can call it that) trying to get a game to work and I have to wonder what in the world they spend the hundreds of millions of dollars of revenue on, because it certainly isn't quality assurance, and definitely isn't tech support, and I question why I would ever spend that much money on an EA game again. I would pay far more for a game like Sins, with constant updates and fixes, and actual community involvement, than a mass-market corporate machine churning out titles that may or may not have proper testing and support, whose developers are contractually obligated to stay out of the way once the title hits market.
Anyway, I thought my point of view would be interesting.
Congratulations on the success of Sins, by the way. I hope the release of Entrenchment is even more successful, driving sales of both products.