Why can't it be from someone who genuinely wants to encourage others like him?
If you read it again, it isn't necessarily all about "screw employment". It deals with the reality of trying to build something while necessarily employed in several places.
Well, sure, but I just don't feel all that encouraged by somebody making grandiose claims that are based on neither experience nor hard data. I don't mean to imply that anyone's heart is in a bad place, but it just reads to me like somebody selling himself on a get rich quick scheme. I know people who have bankrupted themselves on that sort of thing, so this kind of baseless exuberance makes me feel concerned.
If you read it again, it isn't necessarily all about "screw employment". It deals with the reality of trying to build something while necessarily employed in several places.