[iotku]

Twitch's original purpose was splintering off the gaming section of justin.tv (a general streaming site) onto a separate website specifically for gaming content.

They never refocused on gaming as that was the entire focus of the site's creation. During the early days any non-gaming content was strictly prohibited on Twitch.

For a while justin.tv and twitch coexisted, with justin.tv for general content such as "social streams" (equivalent to "Just Chatting" on modern day Twitch) and largely streams of copyrighted content such as tv shows (an obvious liability).

Prior to Amazon purchasing Twitch, justin.tv was shut down and a lot of the general "social" content started becoming allowable on Twitch over time.