The push button stuff and generating over 9000 USD in one month stuff can already be excused because they're just insane, but then you have the little things such as "I used this link building method on my sites and they worked" (I'm skeptical because, if you have the ability to make successful money sites with your SEO, why do you have to waste time on offering it to others?), or "This 12-page e-book got me a gajillion subscribers in no time" (why waste time selling it when you can be building bigger lists and thus earning more money from e-mail marketing?).
I'm not saying all are lies, but can we ever expect some honest-to-goodness marketing? If so, how do we spot these honest ones?