Forum:Iymrith article has massive SKT spoilers

The Iymrith page gives most of Storm King's Thunder away. The whole plot around Iymrith, the main and secretive antagonist, is revealed in this article, and I am really worried, than once my players meet her in Chapter 4, they'll invariable look up this article. At which point the whole adventure will be spoiled.

So far I told the players to make liberal use of the wiki to flesh out their back stories. Should I tell them not to visit the wiki?