"Fixed" for the next build. We have opted to ignore the collapse-state in Javascript-disabled clients. If it's collapsed, it's collapsed. This was a design flaw in vBulletin 3 (fixed in vB4), anyway, which is why fixing it for VaultWiki broke it in non-VaultWiki boxes. So, in any case, this should now work consistently with other pages while sacrificing the unusual aforementioned case.