I'm torn on this. On one hand I do agree with your goal about wanting to live in a bubble of interesting thoughts. But on the other... I know I have my biases, and I'm sure I might end up blocking people who actually are insightful and interesting but either a) had an off day and shitposted, or b) says insightful things in ways that make me angry and get past my sense of reasonableness.

Good news, it doesn't block! It just puts a red mark next to their name, so you can put less effort into that comment, if you choose.

And, it's social. If someone you've marked green is also using this, and they marks someone green that you have marked red, then you'll see a contested red-green next to them, which is a good "you should probably reconsider" indicator.