Techcrunch article you refered to, mentioned Instapainting is YC Backed company. Quick look at CrunchBase says "The company is backed by Y Combinator and Start Fund (SV Angel and Yuri Milner)."
I thought the site was about self funded single developers? I am missing something?
There's no rule on the site against having external funding of some sort. It really depends on the circumstances. I wouldn't accept a company that has raised enough money to hire a bunch of people or to spend months building out a complex product full-time, because most indie hackers can't do that.
Chris, however, was working alone when he started Instapainting. His funding had dried up and he was in significant debt. And it only took him 2 days to build and launch his product. So there's a lot there that we can all learn from, and nothing that none of us could do without relying on personal savings and a lot of creativity and hustle.
I am merely asking whether Instapainting was YC Backed company as mentioned in TC Article as reading TC and looking at CrunchBase gives different picture from whats mentioned on Indie Hackers.