Can we stop accepting unpreservable pages?

[non-descriptive]

Once in a while I meet articles in TWiR which are either located on some self-hosted site way beyond some kind of ddos protection, which may ban access to me because of VPN or geo-IP resolution, or behind paywall (some Medium.com if I remember right was like that). Those articles might be good but likely gonna perish in a long run - which may lead to dangling links in TWiR. Usually, I just run "Save page" in web.archive.org for those links and read it as they are, but sometimes resources ban archivation which means if it goes down - it dies with all the info. Event pages, videos and audios is understandably hard to preserve, but texts are pretty easy, so could we stop accepting posts which are not archivable? Maybe make little routine to save them before adding them to new issue. Most recent example: 557: Async Rust: The new billion-dollar mistake?