[Loughla]

This all sounds like a necessary outcome to how and why these things were designed.

Social media exists to give you that little shot of happiness.

What makes you feel happier than seeing that the whole world agrees with you (in the case of facebook full of bullshit and reddit's oh-so-happy circlejerk over nonsense)?

This is exactly what these platforms were designed to do. All of them. Hell, look at HN for example. Look at the echo chamber that the Assange article is turning into, with dissenting opinions being downvoted for some reason.

It's all of them. All of them. Every of the social media. I feel like there's something in there about human nature, but psychology and sociology aren't my specialty.