"It takes 20 years to build a reputation and five minutes to ruin it.” - Warren Buffett
“If a book has been in print for forty years, I can expect it to be in print for another forty years. But, and that is the main difference, if it survives another decade, then it will be expected to be in print another fifty years. This, simply, as a rule, tells you why things that have been around for a long time are not "aging" like persons, but "aging" in reverse. Every year that passes without extinction doubles the additional life expectancy. This is an indicator of some robustness. The robustness of an item is proportional to its life!” - Nassim Taleb
The second quote describes the Lindy Effect.
In Newsletter Launchpad, someone asked about credibility. Why should anyone trust another person’s claims on the internet. I think the above two quotes explain why. It takes a long time to build credibility and that credibility is worth more the longer it lasts. Because credibility has so much value, people without it will fake it, but those who have it will not abuse it.