Wow, it's been a long time coming to see thepassingofdays be transparent with his (or her) views. I've seen your observations, which I have at times both agreed and disagreed with, since I first discovered reddit.
Ultimately, though, my disagreement lies in the idea that philosophy is distinct from biology, physics, sociology, and so on. I've seen academic philosophy, too, and that is distinct but that isn't the full breadth of philosophy. As I undertand, philosophy is the ground of all formal thought. All of those things either begin in philosophy or begin in something that began in philosophy. In this way, those that transcend such a "branch" dip into philosophy. However, there is also a space afforded that is not merely between disciplines but philosophical for its own sake. This, I think, you construe for the entirety of philosophy when, really, its just a very strong discipline in a field that includes all disciplines.