Depends on the streamer, I guess. Personality probably matters more to those that are variety streamers - people that play many different games at any given point with a large general audience and probably less important for those that specialize in a specific game that has a built-in community of people interested in that game.
lol, no. The only time I spend watching streamers at all is when there are drops for a game I want and I just mute it and leave it in a tab, but thanks.