People care about being heard, not listened too. It's one-sided. I'm guessing they just like that the thing responded, and may not even bother reading carefully what it said. Like a friend who says supportive murmurings as you prattle on about whatever, "Really?", "Umm-hmm", "Oh, I know what you mean!", "Right, exactly", and, "It's nice to talk to someone I get along with."