If you look at the site in question closer, it states that the "green, blue, and red bars" mean "constructive, technical, and flame war".

If I had to guess, you likely have some heavy premises that blind you from engaging with the content of a post. I'm not going to pretend there isn't some truth in your premises, however I would imagine there would be "many significant issues with [any] community" if we all operated this carelessly.