[gruez]

The checks are to make sure you're using an actual browser and not some sort of automated program like curl to make 100k requests.

[ByQuyzzy]

Nah they’re to individually identify your unique computer.

[gruez]

Source? Here's mine: https://blog.cloudflare.com/end-cloudflare-captcha

[ByQuyzzy]

I don't play the sauce game with reputation managers. And they haven't ended captcha.

[throwaway48476]

Tor is notoriously slow and bandwidth limited. That's not the reason.

[gruez]

5Tbps of botnet bandwidth isn't the only way to do a DDoS attack. L7 attacks can be pulled off with far less bandwidth.