Technorati launched a new service today called WTF (Whereâ€™s The Fire, not the other popular acronym), designed to tell you whatâ€™s hot and why. Anyone can write a â€œblurbâ€ about any topic, and then users vote for the best explanation. Though itâ€™s an interesting concept, and is obviously trying to gain some initial awareness with its very â€œcatchyâ€ name, I donâ€™t see how this is going to work out in the long run. Are people really going to want to explain why something is hot to other people? Do products like the iPhone even need an explanation? It seems like an idea that caters to the lowest common denominator, and one that requires explaining the unexplainable. WTF Technorati?