Why does it need a Y-Combinator backed-startup? Can't wait to see a job posting asking for a "full-stack engineer". This is a typical laundry business: there's hundreds of them everywhere, all "startups" (in the original non-techy sense) who make money. They don't need a Techcrunch article, or any of that hype.
(Obviously YC is smart enough to give this a thought, curious to know what they think)
Current online laundry services are physical laundry spaces, that are leveraging the internet for the area around them. I guess no one has done it at a larger scale yet.