Eugene Thacker says, "the pessimist is understood to be the complainer, forever pointing out what is wrong with the world without ever offering a solution."
I think this a correct observation, but it is wrong for the neutral or optimist to perceive of the pessimist. As a pessimist myself, I believe the source of my pessimism is that I do offer up the solution, but no one listens, and so the world continues on the wrong track towards its inevitable tipping point of doom.