I make it a rule for myself to not pass credentials (maintain an account) on any service which is MITM’d by cloudflare. I’ve lost several accounts to sites moving behind cloudflare in this way.

Additionally, I have an extreme allergy to web tracking and cloudflare is positioned uniquely to be a point of central data aggregation, particularly about browsing habits and adtech shadow profile building.

Even some fedi instances have infested themselves with cloudflare.