I didn't understand why Wolfram Alpha was being hyped up so much in the first place, so I'm not at all surprised that it's turned out to be rubbish. It's not just that it doesn't know the answer to any of your questions, or that it's basically Wikipedia with hardly any editors, or that a web increasingly about linking and networking is never going to get behind something that tries to be your one-stop resource for other sites' data without properly crediting them.
The chief problem is that, well, Wolfram Alpha is really boring. A search for 'Saturn' just turns up a load of numbers and diagrams. Even a search for 'sex' just turns up a dictionary definition. It's too dry for people who aren't experts and too shallow for those who are.