He says: “If you don’t want Google’s candy walk away”.

But that’s the problem; you can’t walk away from a “search engine” that has a virtual monopoly on search, with 85% (here in Europe anyway) of the search market cornered.

What’s more, Google doesn’t HAVE any candy. The “candy” in this case is content, and it is we, the webmasters and website owners, who produce it. Google produces nothing, except systems and gizmos to exploit the work of other people.

1- Most black hat SEOs don’t tell their customers it has a risk of the customer’s site been banned in Google
2- Most black hat sites are lies/scams or made for adsence sites that provide no content for the user (not all but most)
3- Most of the Google guidelines basically say ‘Don’t try and scam the user’ which is unethical. If someone wastes my time for their own goals its unethical and greedy. In general (but not always) breaking the Google guidelines is unethical

Google isn’t always right but its hardly as bad as a lot of the people above make out.

You don’t like Google’s rules, well thats fine but don’t expect them to modify their rules for you or to rank in THEIR search engine. They haven’t really appointed themselves Internet cop, they are mearly policing their own Index/search results.

If you are complaining about that then you’ve got a more serious problem than your SERPs position
The only reason this is a problem at all is because they are the biggest search engine so everyone thinks that they MUST be on Google or they aren’t on the web.

When you mentioned the part about the sales letter not reflecting what is in the product how one “reads” a sales letter can often determine if their expectations were too high.

There are times when someone is expecting far too much for their investment. For example, when one buys a $10 report they can hardly expect that to solve all their business problems and yet, some people do have that expectation.

Even though misleading is one thing, misreading is another.

You said it best: just because Google doesn’t like it, that doesn’t mean it’s unethical.

Google is trying to police the entire SEO world because their fortune is built upon how they use backlinks to rank websites. If website owners change the playing field, then Google needs to adjust, not the other way around.