This feature was implemented in order to keep people from "stick stirring." The code that the game uses to predict where you're going next to minimize netlag is thrown off by the fraction-of-a-second movements of someone thrashing their joystick about, which makes their plane appear to flounder and spin in random directions.
If you're staying anywhere within the realm of feasibility with your flight style, you should never get this message. Open up the Advanced tab of each axis in your joystick setup to make sure the joystick input isn't rapidly spiking.