learn analog design site:edaboard.com
I think you should know why it is better to learn it. In very big designs, knowing SPICE syntax will help you to automate tasks and do circuit analysis more easily. Say if you want to plot a number of curves for the circuit, for different values of components over various temperatures, instead of running a simulation a number of times, you can simply use statements such as .alter and .param, along with std. analysis statements such as .dc, .ac etc. and save a lot of time.
Like the others have said, it is not a must to get started with circuit design and simulation, but it is very useful as you go to more advanced and complex designs.