Cognitive bias
The shortcuts are not a defect. They are the equipment.
Every account of cognitive bias risks becoming a list of ways other people are stupid. That is the wrong reading. The shortcuts exist because thinking is expensive and the world requires decisions faster than careful reasoning can supply them. They are usually right. They fail in specific, predictable ways.
Three that matter for a platform like this one:
Confirmation bias is not seeking out agreement — most people believe they are open-minded, and are. It is that a claim you already agree with gets examined less carefully than one you do not. The asymmetry is in the scrutiny, not the search.
Availability means a thing that comes easily to mind feels more common than it is. Anything vivid, recent or frequently repeated becomes, in your gut, frequent in the world.
Group attribution is why the other side always looks more extreme than it is. You know the range of opinion among people like you, and you have met the loudest few from everywhere else.
What we try to do here. We do not tell you which biases you are exhibiting. Any platform claiming to do that is guessing, and being told you are biased is about as useful as being told you are wrong. What we do instead is arrange things so the shortcuts have less to grip: response tiers appear in a different order for every reader, none of them owns a colour, and nothing shows you which side is winning before you have decided what you think.