I think it's pretty fair to describe the remains as dead robots similar to folks talking about their coke-bottle decks (recycled plastic) or even a sword forged from the remains of dead robots - I'd still consider that to be made of dead robots even though very little remains outside of the mineral composition.
I mean, aside from most oil being composed of dead plants rather than dinosaurs (if I remember right). Unless you're counting the bits of dinosaur absorbed by those plants before they turned into oil, but I feel like at some point they stopped being dinosaur and started being plant.
PoC or GTFO.
It does have ongoing volcanism, though.
The other machine adventures are not even on planets :)
Pretty sure we're outnumbered.
IP Addresses per person.
I think that by now (2015 --> 2021) and by making smartphone data packages cheaper, we all have a couple of IP addresses. Of course for anyone in an office, or behind a home router, it may look like there is a single IP address, while someone may have a smartphone, laptop, 1-2 tablets, a smart TV.
We are definitely outnumbered.