I wish I could tell you the recipe for figuring out who the target user is for your product and who your users should be, but... there isn't a recipe. It comes down to think really hard and use your judgement to figure out who you're really building this for.

That's actually one of the most disappointing things about doing user interviews and user feedback, which is why I think... people don't do it. You're going to get negative news about your favorite pet feature most of the time.

The pool of people you care about is going to shift over time.

Users think they know what they want, but you get the horseless carriage effect where you're getting asked for a faster horse.

A goal of Twitch is to be wherever gamers are, whether its on laptops and handheld devices or integrated into gaming consoles and software.

If you just talk to who's easy to talk to, you're not really getting the best data.

Who would you talk to? That is the first question for almost any startup that you need to answer. Who is my user and where am I going to find them?