What is the point of moderating answers as that may stifle freeform expression?

The very essence of fluther is to answer. The fact that there are moderators seems the antithesis of Fluther’s goals..what am I missing? Even “flaming” answers can elucidate learning so what is the point of control? Control stifles answers, thus is at odds with the stated principles of the site. In my opinion we are smart enough to filter silliness, and it also can create awareness of a mind in seeing it’s uninhibited viewpoint. Political correctness destroys ingenuity in my opinion.