I can confirm that. Got blocked due to a frivolous report. Cloudflare blocked me and categorized my site as phishing. (censoring me from anyone that uses their systems to browse)

No support. No responses to emails or requests for a review by a human

They also sent a notice to my hosting provider. My hosting provider promptly looked at my site and closed the ticket. It was pretty clear to anyone that the report was malicious.

So yes, Cloudflare censors (to quote Matthew Prince) with "No judicial oversight. No due process. No appeal. No transparency"

Granted this could be just due to lack of staff and support