My intuition would say there are 3 cases when content ceases to become available at the original site:
- The host becomes unable to host the content for some reason (bankruptcy, death, etc.) in which case I assume the archive persists.
- The host is externally required to remove the content (copyright, etc.) in which case I assume IA would face the same external pressure? But I’m not sure on that.
- The host/owner has a change of heart about publishing the content. This borders more on IA acting as reputation management on the part of the original host/owner. Personally I think this is hardest to defend but also probably the least common case. In this case I’d think it’s most often to hide something the original host doesn’t want the public finding out later, but that also seems to make it more valuable to be publicly available in the archive. Plus, from a historian/journalist perspective, it’s valuable to be able to track how things change over time, and hiding this from the public prevents that. Though to be honest I’m kind of in two minds here because on the other hand I’m generally of the opinion that people can grow and change, and we shouldn’t hold people to account for opinions they published a decade ago, for example. I’m also generally in favor of the right to be forgotten.
Would appreciate your thoughts here.