Reading through a post with an answer in my mind I type away and discover someone has posted the exact same thing a few minutes before. How annoying is that. Oh damn its happened again.
Seriously though, if someone beats you to the punch with a solution to a problem its good for the poster of the thread as he or she has at least two different people giving the same advice - surely thats a good thing anyway. Nobodys right all the time and its a good thing to get confirmation.
is prepare a template. Have some generic thread-type sentences already typed up, but with blank spaces scattered around. Then, when you want to be quick of the mark with a response you could just whack in a few keywords relative to the subject and quickly hit the 'post response' button.