I think you may be right, did some googling and linktree is much less commonly used as breadcrumb trail..
Although I didn't see that page before now, I did do the google thing before I posted my thoughts, that's what led me to believe the wrong term being used.
Just looking at this TP setting,Display linktree:
show the series of links that shows your position within the site/forum.
Just cries breadcrumb trail to me. Certainly doesn't resemble a tree in its current form. lol..
Regarding jernatety's original question above. I'm pretty sure he has this Linktree / breadcrumbs showing throughout the rest of his site, just doesn't want them on the articles. I'm pretty sure not many people will click on it or use it, I rarely do to be fair.
The use of Query Title in all articles will also make things look better, I noticed the article I viewed (Clicked from a "Read More" link) wasn't using Query Title, so no page title in the url, just a page number, which is less than ideal IMO.