Earlier quoted context omitted.
Tor is different. We don't put up CAPTCHAs by default for Tor. We totally changed how we handle Tor years ago. But, because Tor provides anonymity, there is _a lot_ of abuse through it. A lot.
I read the privacy sections in your blog post, and it feels like WARP offers anonymity, maybe not from CF, but perhaps from everyone else.
I would say "anonymity" is a fairly strong term for what's being offered here. It's going to hide your source IP, and if you don't mind CF seeing your unencrypted content (and the fact it's unencrypted kinda means that from a technical perspective, you already don't care), it may improve the amount of the connection to unencrypted content that is encrypted (and thereby block the "coffee shop" attack fairly well), but that's all. They're not going to actively strip the bajillions of other active tracking techniques being used nowadays. Your phone will still track location. Facebook will still track you on your phone every bit as much as they did before. etc.
This is part of a complicated set of measures you may be able to take to attain anonymity, but not even remotely the full package.
Again, this is a technical posting to ensure that people understand what this is and is not. This is not a criticism of the service for not being something it isn't or anything like that.
Less technically and more value-judgy (though still not much), note the title: "Introducing Warp: Fixing Mobile Internet Performance and Security" Performance was highlighted first, security second. This seems to me to be a reasonable and accurate reflection of the nature of the service.