You seem to forget the fact that on the internet anonymity makes us even bigger liars and assholes. Also that these are kids going through puberty and the like,

You seem to forget the fact that on the internet anonymity makes us even bigger liars and assholes. Also that these are kids going through puberty and the like, not a tribe of super mellow and "rational" people. Even beyond that, extremely personal attacks are rarely "constructive criticism". "This guy is super ugly" isn't going to be super helpful on a personal improvement level. Negative feedback on a personal level also rarely works. This talk was about performance reviews, but it covers the criticisms of people's personality. https://www.youtube.com/watch?v=bGkVM1B5NuI#t=1402 https://www.youtube.com/watch?v=bGkVM1B5NuI#t=1402