Frequency and price describe what people published. They are not a forecast of this fixture, and a market being popular is not evidence it will land.
Ordered by engagement, which is counted. Not by how likely they are to win.
There is no chat attached to a fixture. Conversation happens on a slip, where the claim being discussed is visible and immutable, or in a room. A match-wide channel would be the one place someone could tout a bet with nothing on the record next to it.