> Tiny startups can’t afford to loose customers because they can’t scale though, right? Who is going to invest in a company that isn’t building for scale?

Having too many (or too big) customers to handle is a nice problem to have, and one you can generally solve when you get there. There are a handful of giant customers that would want you to be giant from day 1, but those customers are very difficult to land and probably not worth the effort.