Since it can have both false positives as well as false negatives, I don't think it's worth the effort.
It gives you percentage that shows if some text was potentially generated by AI bot or not.
We use similar thing to detect if something was plagiarized in forum and report that to moderators, so I think we can use something similar with AI generated text.
If one member gets repeated high percentage of AI generated posts I think this member should be banned or temporary banned.
Also: what are the odds those "detectors" only use the current AI chat for their own publicity?
I don't know who owns websites I posted and I don't care who they are, except one that is collaborative between people from MIT and Harvard.