For one, my heart wasn't in it. It was like I had spent months crafting an idea that I thought an audience of customers would receive happily - only to realize I wouldn't use it or care about it myself. It also had become a business proposition I couldn't succeed at myself. I needed more help than ever.
So I packed up my stuff and killed it. It was painful, but I am glad I had the ability to see the truth before getting so bad as to be like the scene painted in this post. That said, it's not always obvious like it was in my case; I have tremendous respect for folks that go through this and fight to the bitter end.