I have, on occasion, admitted to having 'vaguely libertarian' ideas. The truth is that I'm really pretty close to what most people would consider libertarian. I'm way socially liberal, that's simple. As far as economics, I think the questions are a lot more complex, but I am, for example, in favor of free trade, in favor of drug legalization, in favor of school choice (I think most of the ideas for implementation have been bad), against subsidies and tariffs, and I do agree that in many, many cases government regulation causes more problems than it solves. Questions about the Fed are a little more complicated, but I have various thoughts beyond "let it ride." I even sent money to Ron Paul (I still don't think he'd make a good president, but I like it that he made such a big splash, and I think his voice is useful).
If you're wondering why I spend so much time arguing against 'libertarians' and 'fiscal conservatives' here, it's because I'm also very contrarian. I'll argue with anyone. There just happen to be more fiscal conservatives than anything else here. Other reasons, too, but that's a big one.
All of this said, I've never liked the idea of referring to myself as libertarian. And I finally realized that the reason for that is because the vast majority of other libertarians that I've spoken to are monumental assholes.