I agree, OP. I have done this for years. (See my avatar...I do this braid and pin it up). I airdry all the time and always braid my hair overnight to let it partially dry, let it loose during the day to finish drying, and re-moisturize/re-braid for the rest of the day and night unless I have to go out. I mainly keep my hair braided all the time in 1-4 braids whenever I'm at home...which is 90% of the time. It helps tremendously with keeping the ends moist, and my hair is retaining mega length b/c I leave it alone and protected.