By the way, I’d make a similar criticism of, for example, later Heidegger. At some point he collapses into a kind of solipsistic logorrhea. Sein and Zeit and his lectures from the 1920s, though, had real philosophical meat on the bone (this is not an endorsement of his views, by the way; I think he was just wrong about some stuff, like getting the ontological priority of ready-to-hand and present-at-hand exactly backwards—-but early Heidegger is philosophically substantive and engaging in ways later Heidegger absolutely isn’t).