No, my point is that although we cannot (from a historical point of view) attribute to Jesus all the things said abnout him 15 years after his death, the fact that such claims exist at all really do tend to confirm his existence. As for the example: if we didn't have Dianetics, or any offical record of L. Ron Hubbard's life (and lived in a society where such wasn't unusual), but we did have the writings of Scientologists 15 years later that spoke of him, that would would be evidence (if not conclusive, then not to be discounted merely for being religious) of his existence.
Or are we to say that no one from that time who left no writings existed?
Or are we to say that no one from that time who left no writings existed?