The claim on this Webpage is that in wikis "we start using page titles as replacements for whole ideas, allowing readers to 'drill down' to the core of all the important concepts, building a LinkLanguage as we build the site.” Thus "People writing a wiki often evolve a 'Link Language:' a fluent language wherein special words automatically link to definitions of their meaning."
An interesting idea, but does it capture what is important about linking? The second claim is certainly problematic. Wikis involve semantics, this seems to reduce them to semantic connections. A "LinkLanguage" is a nice piece of jargon. One might perhaps go so far as to say that it reduces wikis themselves to jargon.
Thanks to this post by Edward Vielmetti who tries (but to mymind fails) to make sense of these claims.