Take note Republicans (which I'm doubting many even care anymore), your party thinks short term profits for a few are more important than science and the environment for all.
They're not. Someone on HN said that they just mark it as unavailable but they still keep it, I don't know what the expiry is on that though, or if they could be forced to actually delete something 'for real'. Nor do I know how you'd verify that beyond doubt.
Related:
The EPA plans to sunset its online archive - https://news.ycombinator.com/item?id=30795719 - March 2022
They shouldn't be.
Don't let AI tells ruin professional writing for you.