Using a pseudonym to anonymously whine about people's bullshit projects is so cowardly. I generally agree with what he is saying but don't have much respect for this faceless ranter. Is it so hard to say no to the people who approach him with these bullshit projects, and move on? This isn't a new problem. There are plenty of clients especially in Brooklyn that are willing to pay a decent wage to work on a project that isn't completely soul crushing.
Building a good freelance client base is all about word of mouth. If you work a gig for a low wage and they walk all over you, chances are you will get more clients from the first client that want the same thing, to pay you a low wage and walk all over you. If you are choosy about who you do projects for, you will probably have a better portfolio because you didn't work on a bullshit project, and you will land more clients like first ones you chose to work with.
If you are choosy and still think the clients suck and the projects are bullshit, freelance probably isn't for you.