There's no great solution, but there are things you can do to help, for example:
- take an 'archive copy' of anything you link to so you can host it yourself if it goes away (copyright issues to consider, of course)
- automate a link-checking process so you at least know as soon as a target disappears
- only link to 'good' content (you can feed back results from previous step to approximate this on a domain-basis over time)
(although these things require a build process, which the article's author is against)