Personally, I think it is moot. This sort of thing happens for real estate transactions all the time, so why not for domain names?

Farm Bureau might have been able to make an educated guess about the buyer. Odds are that it was a company with an F and B in the name.

Short domain names are definitely valuable. My own domains have always been a bit long to use as logins for web sites, so I recently acquired sbwg.org (which, ostensibly, COULD be short for Soap Box Writers Group) just to give myself and a few other people really short email addresses (1 character + @sbwg.org)

40Tech is a nice mix of short and descriptive.