As an aside, I note that there is an ongoing discussion on Foundation-L
about whether or not to allow Google to crawl their archives. It seems there
is considerable concern about the fact Google has, in the past, highly
ranked arcane and incidental discussions and thus the list does not permit
robots.txt harvesting; early responses are that the membership of that list
does not wish to change it, pointing out that anyone who wants to read the
archives is welcome to do so, or even to participate by signing up for the
list.
Risker