As mentioned on our info page about VigLink on Wizzley, we have not enabled automatic link insertion yet.
There are very limited control options for individual authors at this time. During the test phase, we were seeing some strange link insertions that weren't making much sense. For example, one article used the word "canon" (as in rule, law, principle), and VigLink inserted a link to a Canon camera.
Another factor was that some articles already use plenty of text links, and the automatic link insertion would add several more. Not an optimal situation.
So, while we're working on ways to better control this feature we'll hold off until we can be reasonably happy with the results.