Yes, as I acknowledged I did not spend time digging in who wrote which exact patch or sift through some loudmouths on /r/cpp whining about things. The burden to

Yes, as I acknowledged I did not spend time digging in who wrote which exact patch or sift through some loudmouths on /r/cpp whining about things. The burden to substantiate your argument at this point is chiefly on you. I have spent enough time on this already. You can narrow things down to some area that you care about specifically, but I am fairly certain Google and Apple each spend tens of millions of dollars a year, if not 100+, on the LLVM project at large. Are you suggesting this $$$ figure is wrong? To contextualize, I have been one of those PhD student in the exact same space who used clang/libtooling in a past life, as well as a maintainer of a sufficiently popular corporate open source projects, and I do have my own hunches on how much exactly random "volunteer contribution" is often worth (hint: it is mostly extra pain for the maintainers to review). The irony is if Apple closed it up for themselves as proprietary software in the first place, they would not have received that criticism. If you start open sourcing, you will be treated with a much different, IMHO unfair, benchmark. Before LLVM, much of the PL research prototype would be done on Java with some research JVM crap because it was hard to do it in the real world with native code, so I could the academics beneficiaries not among the abused.