If someone said they take ICE public buses to commute daily, my guess is the sentiment would be that is environmentally-conscious commuting.
Is this meaningfully different from boarding a plane? I can see a luxury vs necessity angle, but is that it? Over long distances planes are more efficient. And like buses, the idea that a single person's behavior will impact departure schedules feels wrong.
That would be 63% of his 9 nomad years.
Vitalik sitting on non-private flights doesn't meaningfully add to pollution, the flight was already happening. The fuel was already earmarked for burning.
"This person boarded a lot of flights that were going to pollute anyways" is a strange take. Sure he did it a lot, but if an individual contributes no measurable impact by sitting on a plane, then boarding 300+ flights pollutes roughly the same as boarding 0, since those 300+ flights happen anyway.
If you want to argue about market forces, do that. But as a sibling comment said, blaming a consumer here is strange.