The point you "Anything but PHP" guys seem to conveniently ignore (or perhaps, not comprehend), is that at Facebook scale, you are going to have issues with man

The point you "Anything but PHP" guys seem to conveniently ignore (or perhaps, not comprehend), is that at Facebook scale, you are going to have issues with many of these things regardless of what language you chose. They have specifically made this point many times. You and others point to some hand-wavy magical language which somehow doesn't have any issues when serving hundreds of millions of users. That doesn't exist.