gzt: Wikipedia on echo chambers:The echo chamber effect that occurs online is due to a harmonious group of people amalgamating and developing tunnel vision. Participants in online communities may find their own opinions constantly echoed back to them, which reinforces their individual belief systems.
Perfect example of this is the Trump thread.
Why not make it possible to just hide certain threads? I have no real interest in getting involved in that Donald Trump thread, doing so will probably just infuriate a few people. Seeing this thread all the time on the main page does sometimes tempt me to get involved. I would rather have the ability to stop seeing this thread altogether, apposed to blocking all the left wing liberals.