Unfortunately alot of it from the article seems typical: blogs going off line as bloggers move to new technolgoies, social media companies going defunct or just not keeping old content.
Alot of these things can happen in the west. Remember these books you could read? "The Feynman Letters", etc. I'm paraphrasing-- but its impossible now.
Think of this: emails? A person dies and their laptop dies or is disposed of -- they're all gone. In the past the physicality of the letters would persist. Not so now. All this correspondence vanishes.
Facebook, are you kidding me? If someone famous thought to export their data -- and it can be found on a laptop still working (and you have the login password), then maybe. See above. This repeats and repeats for each system we interact with for communication.
Aside from the laptop scenario-- all this is lost. We live now in a blackhole of historical details of information, and soon to be replaced by a fabricated history hallucinated by LLMs perhaps.
Those that love historical understanding should be very worried.