Its a different medium from real life hence the different mental model (You don't go around poking people in real life but there it is on facebook right?) Thin

Its a different medium from real life hence the different mental model (You don't go around poking people in real life but there it is on facebook right?) Think of it as a public discussion about the article and when someone 'likes' a comment, they're just nodding in approval ... which does actually happen in real life. Lots of head nods just means you're winning over the crowd.