Also, when something is behind CF, Tor users often (though not always) just can’t open/use it. Say, you have a seriously privacy-centered website. Then try not to accept donations via ko-fi (behind CF) or have links to a video platform behind CF. Which just wouldn’t make sense (especially if your website is recommending Tor, even providing onion), making you look a bit stupid tbh.

Fortunately (or unfortunately) this kind of stupid websites are not rare; Tor users are so get used to blocking, it’s unlikely they get upset. If necessary, they can easily circumvent the blocking in various ways (except they may lose interest or assume it’s perhaps worthless, and as soon as they see “Just a moment…” they may just close it).

PS: Recently (2023-09-20, noticed by Anti-Censorship team) some of snowflake users also got problems. If a Snowflake client gets a Cloudflare IP address, their connection will fail. The latest Tor Browser 12.5.5 is out (2023-09-26), with a workaround, where snowflake avoiding IP that might resolve to CF (Bug tor-browser#42120).