CloudFlare allows website host to have much finer grain control that would have solved many of these problems - if they pay for it. I see no problem with this.
Cloudflare is blocking him because the hosts didn’t configure Cloudflare to not use captcha for sub domains that host non browser traffic like podcast RSS feeds. That was his theory.
That capability is only available for paid CloudFlare plans.
I just have no sympathy for Daniel since up until just now he was trying to get everyone to do this.