It’s evidence against them being a person whose opinion is strong evidence of B, which means it is evidence against B, but it’s probably weak evidence, unless their endorsement of B is the main thing giving it high probability in your book.
It’s evidence against them being a person whose opinion is strong evidence of B, which means it is evidence against B, but it’s probably weak evidence, unless their endorsement of B is the main thing giving it high probability in your book.