I understand what CloudFlare is saying but I still think that the benefits of allowing legitimate TOR users access websites freely (without cumbersome captchas) outweighs the troubles malicious users might cause. Public computers such as in Libraries are also often used to do reprehensible things, but still, we understand the benefits of having them.

It is also worrying that CloudFlare has this much power. One of the greatest things about the internet is the openness of the platform and the non existence of gate keepers.

Also, here is an annotated version of the TOR paper for those who want to read more about it http://fermatslibrary.com/s/tor-the-second-generation-onion-...