You are so right about everyone being used to where things are on the site, but at the heart, it's not very navigable at all. Just look at how many times people post articles (or vanities-GASP!) in Breaking News or such.
I would say that the main way most of us consume this web site's material is by LATEST MESSAGE as this displays what people are most talking about.
That said, targeted content delivery is sorely lacking on FR. As you said, we've all just become accustomed to how it's done it previously, and any change that diminishes that is not well-received.
As a side note, I seem to be getting a lot of THESE today:
The proxy server received an invalid response from an upstream server.
The proxy server could not handle the request GET /tag/articles:latest/.
Reason: Error reading from remote server
There is just something about writing your own code that drives some. Although not very active, I wrote my own code, takin from the likes of FR about 8 years ago... I recently put it back up. It works well for a rookie programmers first attempt!
http://www.trulineint.com/latestposts.asp