A link disappearing isn’t a major issue. Not something I’d worry about (but yea might show up as a finding on the SOC 2 report, although I wouldn’t be surprised if many auditors wouldn’t notice - it’s not like they’re checking every link)

I’m also confused why the OP is saying they’re linking to public documents on the public internet. Across the board, security orgs don’t like to randomly publish their internal docs publicly. Those typically stay in your intranet (or Google Drive, etc).

You're missing the existence of technology that allows anyone to create superficially plausible but ultimately made-up anecdotes for posting to public forums, all just to create cover for a few posts here and there mixing in advertising for a vaguely-related product or service. (Or even just to build karma for a voting ring.)

Currently, you can still sometimes sniff out such content based on the writing style, but in the future you'd have to be an expert on the exact thing they claim expertise in, and even then you could be left wondering whether they're just an expert in a slightly different area instead of making it all up.

EDIT: Also on the front page currently: "You can't trust the internet anymore" https://news.ycombinator.com/item?id=47017727