Confrontational. Maybe. But why is it too much to ask to see a little explanation behind theories? I don't expect everyone to think the same way I do, or have the same opinions, but I do think that people should be able to explain themselves, especially when they have a view which is not based on facts.
A market maker or liquidity provider is a company, or an individual, that quotes both a buy and a sell price in a financial instrument or commodity held in inventory, hoping to make a profit on the bid-offer spread, or turn.