It's the fact that it's likely gonna be printed in a paper journal, where you can't click the link.
This use case of "I have a paper journal and no PDF but a computer with a web browser" seems extraordinarily contrived. I have literally held a single-digit number of printed papers in my entire life while looking at thousands as PDFs. If we cared, we'd use a QR code.
This kind of luddite behavior sometimes makes using this site exhausting.
Reading paper was more comfortable then reading on the screen, and it was easy to annotate, highlight, scribble notes in the margin, doodle diagrams, etc.
Do grad students today just use tablets with a stylus instead (iPad + pencil, Remarkable Pro, etc)?
Granted, post grad school I don't print much anymore, but that's mostly due to a change in use case. At work I generally read at most 1-5 papers a day tops, which is small enough to just do on a computer screen (and have less need to annotate, etc). Quite different then the 50-100 papers/week + deep analysis expected in academia.
I just had a really warm feeling of nostalgia reading that! I was a pretty average student, and the material was sometimes dull, but the coffee was nice, life had little stress (in comparison) and everything felt good. I forgot about those times haha. Thanks!
This is by no means a universal experience.
People still get printed journals. Libraries still stock them. Some folks print out reference materials from a PDF to take to class or a meeting or whatnot.
Sure, contributing to link rot is bad, but in the same way that throwing out spoiled food is bad. Sometimes you've just gotta break a bunch of links.
Anyone who is savvy enough to put a link in a document is well-aware of the fact that links don't work forever, because anyone who has ever clicked a link from a document has encountered a dead link. It's not 2005 anymore, the internet has accumulated plenty of dead links.
We have many paper documents from over 1,000 years ago.
The vast majority of what was on the internet 25 years ago is gone forever.