I think DIY is more of a culture than a politics and as such it's well suited for appropriation by entrepreneurial and corporate interests. DIY can mean crafts but it can also mean strategies about permaculture, food and housing. It can mean groups like Common Ground Relief in Louisiana or individuals that are moving to distressed areas in the Rust Belt to build community. It tends to focus on the local as a way of addressing the global. It can also tend to have a romantic sense of itself that keeps it isolated from the larger society. I tend to see DIY as a continuation or revival of the 60's "back to the land" movement. If you read something like Orville Schell's history of alternative community building in Bolinas, CA you'll see the same tensions at work: a goal of working out new and sometimes utopian ideas and a concern with not acting like hipster colonizers. In the case of Bolinas, that community really did act as a seedbed for much of the organic food culture that has become, for better or for worse, a part of official culture today. I suspect that the same thing will occur with the DIY culture going on today; most of it will evaporate and some of it will change the way we see things.
fm