Entertainer. Most people don't watch twitch to watch competitive people as much as they want to watch an Entertainer and playing a game they like is a plus. Also luck. Goth says this all the time, being a successful streamer requires the right amount of luck at the right time. And they are professional. They are consistent, they stream every single day. The communicate, they do things for their community (hello destiny con.) If you think that people watch games to see the most skilled players you miss the point entirely.