People who write technical blogs, go to user groups, or endlessly read programming books seem to be in the "not us" group, but I know of day job developers who do (some/all of) those things. Drawing lines in the sand doesn't seem useful when, I think, the issue behind this seems to be "don't look down on us day job developers." :-)
The bigger takeaway for me from the manifesto is the first half--that my job is my job. I enjoy my co-workers, but, truthfully, I enjoy my family and friends more. And that should be okay.