> people who need to be engaged

Who needs to be engaged with? On Twitter, you choose who to follow. Why in the world would you have an obligation to listen to random strangers who want to argue with you? Imagine if you were in a restaurant talking with your friends, some stranger sitting at another table overheard you, and then decided to come over and butt into the conversation? And when the stranger is told to go away, they complain "You're talking in a public place where people can hear you, what did you expect?" And somehow the stranger feels that they're wronged by that.