This is ridiculous. If true, they chase affiliates with really poor threat, that disawoving their links will hurt them (which is not a fact but speculation).
I have a side project about internet security, we emailed Willhill (few times I think), because we have found real problems with the "hidden image links" as I quote the link above and no one responded.
I must admit that I really like Google strict policies. Who does not care is hit, who cares is the winner. Yes it is not democracy, but fortunately enough Google is not an insane totalitarian.
If you talk to God, you are praying; If God talks to you, you have schizophrenia.