Oh, sorry, my intent wasn't to claim he's not really a crackpot, just the the grandparent was making the claim that the reason why Lessig is a crackpot is because Lessig can not see the real issue here, which is campaign finance reform.
Anyone who has been slightly paying attention to American politics in the last decade or so would know that Lessig, of all people, is deeply aware of this issue. Lessig has been fighting and trying to make the issue of money in politics a thing for quite a long while.
If one has been actually following Lessig's career they'd know that Lessig has taken to the issue of money in politics because of his first great crusade, that of fixing Copyright for all net-denizens, and honestly the world.
I personally believe Lessig to be a smart, driven, and naive, man who has been fighting for the right things, even if no one will actually listen to him and take action on his suggestions.