I recently tried to find an archive of popular chain emails from the 90s... They're gone. Most of the popular data from that era just wasn't collated by anybody

I recently tried to find an archive of popular chain emails from the 90s... They're gone. Most of the popular data from that era just wasn't collated by anybody. The data hasn't survived 20 years. How little will exist in 100 years? Let alone 2000?