I agree. I developed a Pinterest-like app around the same year they launched. I even had a perfect domain name for it. Being a perfectionist, I never shipped. I

I agree. I developed a Pinterest-like app around the same year they launched. I even had a perfect domain name for it. Being a perfectionist, I never shipped. I was worried about things like scaling to support tens of thousands of photos, a "similar images" feature, etc. A few years after abandoning the project I discovered Pinterest. ¯\_(ツ)_/¯