Streaming is a very odd concept - one that I think you either understand, or you don't.
Working from home, I don't tend to have much contact with others - so I took to browsing Twitch for something to listen to other than the radio.
I tend to mix it up a bit, and watch some games that I do not play myself or have previously had little interest in, to get an understanding of what the game was about. I was browsing the list of Minecraft streams one day, and saw a stream with a hundred or so viewers by a Swedish girl called Emma aka
swebliss. Yes - initially the fact that she was a girl did draw me to click on the thumbnail - but I then found quite a nice, likeable girl who plays a variety of games, and is always interacting with the chat, getting topics of conversation going in the chat etc.
I now tend to have her stream on for most of the day on one of my 3 monitors whilst I'm working. I'll also occasionally say something in the chat too.
The fact that she's an attractive girl has nothing to do with it other than the initial click on the video thumbnail - if the personality was not to my taste, then I'd not have continued watching, like I didn't continue watching some of the other streams I have previously watched, because I didn't like their personality.
I can understand that people watching people playing games in their spare time is odd!
As for the TotalBiscuit thing - I actually quite like him, again it's whether you like or dislike his personality. Not everyone has to like someone, and not everyone has to hate someone!