There's also literal language translation. Generate in language A, translate to language B (Either "manually" by being proficient in it, or with non-LLM translation).
A very, very significant portion of the world knows more than 1 language.
And the more hoops you make cheaters jump through, the better.
Perhaps, but no tools needed for those who know more than one language, which is a lot of people.
Watermarking will never be a perfect tool. But there’s a lot of value in making low effort llm slop detectable. Even if high effort llm slop is still undetectable. Don’t make perfect the enemy of good.
If your goal is to defeat an AI detector for kicks, this might work. If your goal is to save effort by using AI to produce text, I don't think this works.
You don't think so based on what? One does not have to be a subject matter expert to translate from one language to another.
People that know more than one language are translating all the time, both consciously and unconsciously (While they're proficient in language A, they may "think" in language B). It's not as much effort as you think.