[goodcharles]

This is so incredibly wrong: Once you have put a page on the Web, you need to keep it there indefinitely

https://www.nngroup.com/articles/web-pages-must-live-forever...

We need a curated web, not a swamp of every web page that ever existed.

[sugarkjube]

No its not. Its not about keeping a swamp of old crap.

Its about keeping the url to avoid dead links and 404's.

Redirecting an old url to a new one with updated informmation is perfectly fine.