It's probably because even though they're afk, they can't use the computer while they farm as they need the game to keep running. Some games like The Tower or Minecraft (in single-player) will automatically pause if a user switches tabs. Since they have to leave it alone and some people like watching Timelapse's, they stream the time they are afk so people can have something calm to look at.
It's probably because even though they're afk, they can't use the computer while they farm as they need the game to keep running. Some games like The Tower or Minecraft (in single-player) will automatically pause if a user switches tabs. Since they have to leave it alone and some people like watching Timelapse's, they stream the time they are afk so people can have something calm to look at.