As someone else rightly points out, this has nothing to do with bots or AI. The concept is to allow an individual (not a bot) to manage a number of social media accounts from one computer. Each account should have its own history and believable back story, name and location etc. There will also probably be network separation between each account to reduce traceability.
Not sure why so many people are shocked by this... i'm sure there are rooms full of people doing this all over the world.