Generally speaking we would recommend anyone to keep their KMD under their control and not in our centralized ICO website or an exchange. Also, when you keep the KMD in your own control you will gain the annual 5% interest.
The 5% is reason enough to take control of your own KMD.
So valid reason because when you talk about 5% in cryptocurrency this is huge return practically doing nothing just make sure after 12 months, transfer your balance to the same or different KMD address to reactivate the interest.