Can't remember who it was (b3ta? popbitch? penny-arcade?), but I recently saw a comment by someone who's been running a website since the turn of the millennium, and they said that fully 99% of the links they posted two decades ago were no longer valid.

To really put that into perspective, you have to remember that for most sites to get linked to from a popular site like that, meant that it was usually something of value that would have had a lot of work put into it, and that people found interesting or useful.