When you spend most of your time working in an adversarial environment, it's easy to lose sight of the fact that the vast majority of folks are good / moral. Human civilization as we know it would collapse if this were not the case.
Twitter is both a place where you can discover smart people and insightful ideas and a place to be bombarded with pointless nitpicking and endless outrage. It's like having coffee with the world's brightest thinkers while the most annoying person in your life sits one table over.