I thought you were serious about the 6 month comparison, reading it now, I can hear the sarcasm being clicked on prior to the statement.
You bring up some good points about the four principals, and people that don’t have the attitude as well as the knowledge of these (at least the first three) might be successful for a period of time, but get wacked later.
Personally, I like reading the posts from everybody because you have nothing to lose, and you might learn something, but like you pointed out, you have to take everything with a grain of salt and not rely on a blog poster for investment advice.