In the present software, text inside a <pre> section is not scanned for wiki markup--i.e., <pre> implies <nowiki>. I think this is the wrong behavior. If you want <nowiki>, you can still use it, but I think <pre> sections should just output a pre-formatted (i.e., line breaks not ignored) section of text; if that section has [[links]] and ''quotes'', they should be rendered.
HTML 4.01 is kind of odd on this matter: things like <em> and <b> are allowed inside <pre> and interpreted, but it specifically excludes a few things like <img> and <small>.
I seek opinions.