Yes, websites often show logos and links to other websites which the authors consider interesting. That doesn't mean that by visiting one website you are giving implicit consent to receive advertising from all the websites it links to.

This is a site about rationality. They are telling people about a course in rationality. Where's the problem? If you just hate the idea of reading something that was written by someone who might not be objective, well, you're screwed anyway, but no-one forced you to read this particular article.

EDIT: "Goodbye"?