This is an interesting article altogether, nice facts put together, another thing I love about using bitcoin as a means of donation is that most persons love to keep a low profile when offering donations and bitcoin offers then that privacy and they can't be traced making it a better means for donations than fait.
And also if I were to receive bitcoin as donation, I could also chose to keep it for longer and let the value grow, although it's not very advisable if you can't or won't be ready for bear.