As for logicians as philosophers, perhaps I am in the minority when I disassociate them soley based on their results. Maybe that is perhaps defining the problem set based on the solution. But in general logicians follow the rigor of mathematics, and as a result their accomplishments are timeless. But when they are older often simply abandon the rigor for treatises on the "meaning" of the Incompleteness theorem or the futility of logic.
As a young man, Russell classified himself as a mathematician. And to paraphrase hi, he became a philosopher when he slowed down, and then a politician when we slowed down even more.
Perhaps the split on mind/brain understanding is again the birth of the science of psychology. Kuhn's work is obviously sociological in nature, yet it is untested. In the regard, perhaps philosophy has a place as a proto-science. It is were ideas gestate before rigor.
But you ask, "So what?" My answer is that these discussions and time spent are not much more than entertainment for those engaged; but they are portrayed as the most noble art and purest pursuit of man. The general populace scoffs when an actor demands respect for ill-conceived political views or an artist is uncovered as a faux-intellectual. In my opinion it is the same when the the twenty year old with tweed jacket and goatee settles down with Nietzsche in the university commons. That's a past time activity; which is fine. We all enjoy a football game, a movie, or a stimulating books. But when we partake of them we know what we are doing. We aren't lying ourselves and others that we are going to make the world a better place by watching the telly tonight.
