Sometimes you'll want to place emphasis on part of a hard link by using HTML tags like <strong> or <em>.
Unfortunately Everything seems to get confused by this. If you link by writing something like:
[<strong>Foo</strong> Bar]
It will point to the node called: "STRONGFoo/STRONG Bar". And that's probably not what you want.
To avoid this use the pipe symbol to point to the correct node like so:
[Foo Bar|<strong>Foo</strong> Bar]
And everything will work just fine.
Thought I'd share this with y'all, since I just figured this out "the hard way".