The Case of the Artful Blogger

It's only indirectly related to this blog and our experiences, but Bitter's trip home brought it to mind. Her brother has had a blog for several years now. Most of the posts are filled with ambiguous references and obscure (and sometimes mixed) metaphors. Why write but to communicate? There are legitimate reasons for withholding from your reader - increasing interest, creating mystery, etc. - it's part of storytelling. But ultimately there must be answers; there must be some sort of revelation. Otherwise you're just a cock-tease. How successful would the Sherlock Holmes stories have been if Holmes had caught the criminals, but left it to Watson to figure out how?