And whilst the IA will honour requests not to archive/index, more aggressive scrapers won't, and will disguise their traffic as normal human browser traffic.

So we're basically decided we only want bad actors to be able to scrape, archive, and index.

Presumably someone has already built this and I'm just unaware of it, but I've long thought some sort of crowd sourced archival effort via browser extension should exist. I'm not sure how such an extension would avoid archiving privileged data though.