As usual the truth lies between. There aren't that many threads that deal specifically with lowest miles (I found 3 to be exact). But when you factor in surveys related to mileage, highest mileage threads, etc. it does turn out to be a pretty sizable list. This is what I found in about 5 minutes, I'm sure you could find a few more with more digging.

Lowest Miles (I think the last link is the one you mentioned Mark)

http://www.vehicross.info/forums/sho...t=lowest+miles
http://www.vehicross.info/forums/sho...t=lowest+miles
http://www.vehicross.info/forums/sho...t=lowest+miles

Surveys

http://www.vehicross.info/forums/sho...light=odometer
http://www.vehicross.info/forums/sho...light=odometer

Highest Mileage

http://www.vehicross.info/forums/sho...ighest+mileage

FWIW I don't think it hurts to post a new thread on this topic. As I've said before, there's a big difference between questions whose answers change over time (best cladding treatment, least miles, oldest member) vs. those that don't (the infamous "what's the biggest tire that I can fit" question comes to mind).