The key point is that the TOS says that you grant Craigslist the right to redistribute your listing where ever they see fit, it doesn't say some third party entity has the right to do that.
As far as I'm aware, if you post information in a place where it will be publicly accessible, then you are tacitly agreeing that third parties will be able to access it and use it as they please. That's not a right that needs to be given to these third parties. It exists from the get-go, and must be explicitly taken away by something like copyright.
So I can legally start amazon-copied-reviews.com and scrape every product review from amazon.com with my own referrer links to Walmart without fear of repercussion? Sweet.
