It is the great irony of our times that a domain that requires so little working capital to start and grow reasonably well (software) is so hungry for money inf

It is the great irony of our times that a domain that requires so little working capital to start and grow reasonably well (software) is so hungry for money infusions. I hear that you need the money to grow quickly and growing quickly and capturing networking effects is the path to getting a horn on your horse. I'm not buying it. Being profitable as quickly as possible allows you to reinvest that money which then multiplies into even more investment capital. Getting the know how and connections I can understand but VC for the money to fuel hyper growth...it sounds like a questionable proposition. Why would I put off testing the most fundamental hypothesis of my business (can it be profitable)? Are there any known companies that explicitly didn't take any money after YC? It feels like once you take the first bit you're sliding down the slope since investors are pushing to take further rounds which usually pop up valuation. YC->bootstrap mode seems like a reasonable approach but the YC program seems to be built around pitching to the next round of investment (demo day). Has YC considered an alternate program where the explicit goal is being profitable after the program (black number day instead of demo day)?