For the record, I was not casting stones just stating that I was not personally comfortable with the idea of asking people that have had little touch point with

For the record, I was not casting stones just stating that I was not personally comfortable with the idea of asking people that have had little touch point with the company to write something as the opening touch point for an interview (i.e. I personally would not do it). For me personally, portfolio would be the first filter. I would only engage people that I felt's portfolio reflected the qualities that I was looking for. If they don't have a portfolio then sure, they have to build something anyway just to prove that they can build something but that is a limited subset most that would be applying will have previous work that can be submitted. As well I don't see how a few hours could provide anything beyond a very amateur quality mock-up. Sure a few hours and some jQuery UI elements could make something pretty, but I am assuming that you are looking for a little more depth than someone that can just throw some jQuery UI widgets on a page. For me, I would be looking for someone that has deep dynamic language understanding, a deep understanding of event based programming and how events can be used to decouple UI elements and how that can create elements that can be dropped into a UI framework and auto wire itself up to data events. Someone that understands promises and it's relationship to asynchronous callback based programming constructs. I personally would be embarrassed to submit something that only had a few hours effort in it, because it most assuredly not going to cover all of those core aspects and the ones that are covered are not going to be fleshed out in a detailed level that one should be using to exemplify the state of their skill. I wish you luck (i mean that with all sincerity), and I do hope the people that chose to engage in your interview do truly enjoy it. For me, it crosses to many personal boundaries to be comfortable with employing such recruiting tactics. I would like to ask that you come back and give us a postmortem on how the exercise went and ask that any HN'rs that participate contribute to that conversation. I am generally interested in the outcome and the perception of the participants.