I think the author sounds angry and judgmental and it didn't do much for me.
I think we (anarchists and non-anarchists) are all hypocrites to varying degrees.
I don't think dumpstering or rejecting employment are "wrong", regardless of one's financial situation.
I know very little about the punk scene as it relates to anarchism or whether or not it is dead.
I don't know what any anarchists "should" do, but like my observation about hypocrisy, I think most people are pretentious to some extent at various times.
Perhaps the author wrote the piece as a way to get people to think about their own hypocrisy or to challenge the reader to re-evaluate their thoughts and actions, but to me it mostly sounded like a rant - one that I had a hard time finding much use for.