Who needs to webscale to millions of requests per minute?

Really, the vast majority of web apps built today will see hundreds of requests per minute.

Still, Github and Shopify have proven that Rails can scale to hundreds of thousands of requests per second. Which is a great number.

Said that, if my goal was to build an app with a simple set of features that don't change often, and that will serve 100 million users, where none of them is paying user, I would probably not choose Rails.