Yes, I'm basing this on experience. A non-savvy user sees most modern UIs as overwhelming, difficult to navigate and they don't have the same priors that the av

Yes, I'm basing this on experience. A non-savvy user sees most modern UIs as overwhelming, difficult to navigate and they don't have the same priors that the average HN reader does. When they see a chat pop-up, they see a familiar interface (SMS has been around for long enough) and it gives everyone literate the ability to describe in plain language what problem they are having.