Depends on what you're trying to achieve, I think.
Cloudflare's policy is that if there's ToU-violating content being served through a Cloudflare-proxied domain, you can report it to request de-anonymization of the domain, so that you can then reach out to the actual host.
I've reported Cloudflare-proxied phishing-site clones of my company's website to Cloudflare, and they've usually come back to me with a pointer to the upstream-origin's ASN/ISP to reach out to within a few hours.
Cloudflare's policy is that if there's ToU-violating content being served through a Cloudflare-proxied domain, you can report it to request de-anonymization of the domain, so that you can then reach out to the actual host.
I've reported Cloudflare-proxied phishing-site clones of my company's website to Cloudflare, and they've usually come back to me with a pointer to the upstream-origin's ASN/ISP to reach out to within a few hours.