Earlier quoted context omitted.
Of course you can? It's basically asking to see what you consider your best work. If you're earning 100k a year and the most important code you show is how you turned a link colour from light blue to blue -- then your $100,000 a year job has now become questionable. It's hardly losing the plot to ask someone "What have you achieved and what do you think your best work is?"
How do you expect a staff engineer in the middle of driving a multi-year project to revamp some large crufty part of the architecture to a better state, something that will pay off in 3-5 years time, be able to take screenshots of their "best work" to prove to Elon Musk they're worth it? It's a special kind of hell, it manages to be much worse than the hell it is on having to politically push this kind of project to…
Elon’s a jerk, but this thread seems to be full of people saying “I deliver value even though I can’t actually demonstrate any evidence of it.”