The story I've heard is--because their direct customers are websites, not end users--that Cloudflare loves to be ostentatious with these branded blocks and have a vested interest in offering services which punish users because it makes people feel like the product really really does something. Do you constantly hear about people being hosted by Akamai or CDNetworks or whatever going down due to DDoS attacks? No. However, despite a bajillion websites being hosted by Akamai--including, for example, virtually everything from Akamai--have you ever accidentally been blocked or severely rate limited by one, or been given a CAPTCHA... even behind Tor? I doubt it (and this is coming from someone who nigh unto tried to cause themselves problems with Apple and all I ever got was a subtle speed cap); and yet, I feel like everyone I know has experienced being stuck behind Cloudflare at various points in their lives :/.