I once wrote a small utility for my team that ended up being the second or third largest API consumer in the company until someone yelled about it and I throttled back the polling significantly. I always think of The Sorcerer's Apprentice sequence from Fantasia - while we sleep, our automatons labor, potentially unceasingly.

And I can certainly imagine bots fetching Netflix or Porn or whatever video for personal archival purposes (I use youtube-dl to protect a few videos I really like from the vicissitudes of Google myself).