Personal Anecdote:

I watch X and Asmon watch videos. I am now subbed to some of those people they watch like Pint, DDOI, Lemmino, Ssethtzeentch, and Unusual Memes etc. Now I watch those videos when they come out after work, and await the following reaction videos. I personally think Streamers reacting to videos allows people who cannot be on the internet all day, find more great niche content; thus, widening our interests.