Thanks for the summary. I can't find the answer to this question anywhere: is the attack mitigated if the user isn't using an Administrator account?

Utter nonsense. If your "website with some quantity of useful information" was in any way important you would have republished the content on a new domain, which would have been indexed by search engines quite quickly. Archive.org is not a substitute for your obvious lack of due care in taking backups of your data.

Archive.org is NOT an official archive of the web. If they stop respecting robots.txt, then why should others keep respecting it? They claim to be special but they are not any different from any other search engine or data harvester.

I feel I must rectify. You actually mean: "British con-man Conrad Black".

He hasn't been Canadian for 15 years (and good riddance too, why they let him back in is a mystery to me).

Appointing Boris Johnson actually makes weird sense - with May as PM and Hammond as Chancellor, the Foreign Office had to be given to someone with the diplomatic skills of Jeremy Clarkson.

They were outed by a competitor (Nissan).

Nissan subcontracted the manufacturing of some Kei cars to Mitsubishi, and they decided to do some independent emissions testing. So, they only had to "admit" because they'd got caught red-handed.

It has nothing to do with privacy issues, nothing to do with practicality. The "small and distinctive minority" is nothing but a bunch of sad hipsters for whom everything which is worse is actually "better". Their cultural references are limited, their outlook is stunted, they think that the 1950s and 1960s were the epitome of civilization. They are "flat white" as much as their coffee: no depth to their lives, and as white as a country music gig. Typewriters are toys for privileged adulescents.