I resubmitted from here [1] since the link was paywalled, but freely accessible from sfgate instead of sfchronicle.<p>[1] - <a href="https://news.ycombinator.com/item?id=6691034" rel="nofollow">https://news.ycombinator.com/item?id=6691034</a>
> "Square, which makes credit card readers that plug into mobile devices."<p>Perhaps the worst explanation of Square's business model I have ever seen.