Usemonopoly and Open Source
Lethem's piece in Harpers speaks to a very problematic tendency within consumer society - a desire for ownership. Ownership is by definition exclusionary, so treating art, science, and technology like private property will always be at odds with collaboration and growth. The more we begin to value the potential of the commons, the better our community becomes.
I know this sounds a bit precious, but I don't think it has to be. If we accept Lethem's assumption that all art and speach is derivative, and that ideas are living organisms that are shaped and reshaped by a viewer's imagination and subsequent reimagination, then human ingenuity is a historical and iterative process that is constant and unavoidable. Any restrictions on the access, usage, and reimagination of previous work is contrary to Lethem's vision of human progress. This is a powerful idea, and one that I can get behind.
With that said I thoroughly enjoyed reading the dualing perspectives of the Molotov Man. Though reapproproation can be used to further a conversation, there is a human element that need not be forgotten.
So I guess i'm saying, cite your sources, comment your code, give credit where credit is due, understand context, and let others iterate on your ideas.