With Fairfax, both women named date and place. With Tyson, Fairfax claims it was consensual. With the other woman, her lawyer claims to have contemporary emails and such. IOW, there are facts claimed that to a substantial degree can be verified.
With Kavanaugh, Ford gave no date, no place, no account of how she got there or left, said she spoke to no one about it for decades, and the other students she claimed were present ALL denied anything resembling her accusation happened. In other words, Ford crafted a story almost impossible to fact check and did not happen in order to to smear Brett Kavanaugh. And Ford was the least non-credible among the other accusers.
But as my signature says: