It could just be me though, but how many people will actually remember the publisher or even look if he makes another game that looks interesting? I don't think it will totally ruin his chances because I think (rightly or wrongly) that most people are like me in that regard. I'll probably forget about it after a week tbh.
The internet doesnt forget though. Any time this dev has another game, or a sale, or basically anything new, you can count that there will be a forum post in that game saying not to buy it because of his previous actions.