In my opinion, Wittgenstein's philosophical ideas are overrated - in this I agree with A.C. Grayling - and even more than this, I think he was a coward (yes, yes, I know that he fought in WWI, but for purely selfish reasons). The fact that Bertrand Russell liked him so much (at least initially) is a red flag for me (meanwhile Russell was more than happy to bad mouth Charles Peirce, whose work Frank Ramsey shared with Wittgenstein as Ludwig went about writing 'Philosophical Investigations').