Machine learning has nothing to do with this. I am referring to academics who study journalism, communication, political science, or sociology.
And it’s doesn’t really matter who he is at this point, the product he created works well and continues to be a reliable source to interrogate media sources.
I am happy that a person is able to create such a useful product, maintain it and continue to prove reliability in the product, and maintain anonymity. I certainly would want to remain anonymous if I was creating something that actively worked to check people’s information bias.
But it’s an irrelevant discussion: who he is doesn’t really matter when evaluating the work of the site itself.