This lets you, the blog reader, decide whether you want to see the BlogRoll / LinkList. You select the LinkList view that pleases you, not the blog owner. So, how does it work?
Here you see no linklist.
Here you see the linklist, as you would normally do.
(Question): This rocks! So, Chuck, how do I get this into my blog? For the answer, see Adding CumulusLinkList Code Into Your Blog. Note that, unlike MultiStyle Labels (which support only one labels widget), Hidden Linklists support multiple linklist widgets in your blog. This necessitates very careful coding, so follow the Cumulus instructions religiously.