Shouldn't the minimun lenght be erradicated? There are lots of things you cannot even search because of the 3-chars lenght. How about "IP" or "3D" or runtime error "53" or any other 2-chars-long meaninful acronym? How would you make a search if you want to know how the get the IP of yor computer. I know how to do that, and I know it's been asked three billion times... but, you cannot type "get IP", because IP is not a valid word.