re. 1) and 3): CloudFlare is not blocking exit nodes because of volumetric DDoS attacks. That's not really viable over Tor anyway. It's mostly to block comment

re. 1) and 3): CloudFlare is not blocking exit nodes because of volumetric DDoS attacks. That's not really viable over Tor anyway. It's mostly to block comment spam, crawlers and vulnerability scans (e.g. SQLi), which is unfortunately often done through Tor in automated ways. Also: Website owners using CloudFlare can whitelist Tor traffic if they so chose. I don't see how 2) would change anything with regards to the blocking situation. All the aforementioned problems would still apply, the only difference would be that they'd lose the IP address as an identifier, making it even harder to filter malicious traffic. I'm not against CloudFlare implementing something like that, but I fail to see the relevancy and I do wonder if tunneling all hidden service traffic for a site through a centralized service (which needs access to the plaintext in order to do any kind of caching or filtering) is a good idea for a project like Tor.