Twitter, cuz you've to be a narcissist to broadcast your every single thought like it matters. It brings out your worst. I have a dormant account just to try out punchlines on randos. You can't use that site unironically.
It's full of bullies, bots, pschopaths, 'journos', corp accounts acting like humans, witches, ethots, grifters, professional liars (read politicians), kpop fandoms, stans, furries, you name it
But it def acts as a containment zone of internet. Keep that zoo door closed