Last week YouTube launched a program called Super Chat. Super Chat allows anyone to donate on a live stream and their chat message will be pinned or highlighted within the chat. Its a very interesting product!
However, that being said, Twitch has had similar products for quite a long time. It seems like YouTube really need to look at what Twitch are doing and try to push in that direction.
Everything seems to be converging. Twitch is trying to move from the video game focus to other types of content, while YouTube is slowly trying to move into unique content with an amazing community (which Twitch has!).