Why modelling when you can draw on a white board

I came across this pretty fancy blogger that states that it's better do draw on a white boards. "A plain old whiteboard is my favorite modeling tool. It then says that since these might useful to others, they can be captured in a picture: "We took the photo because we were afraid that we’d lose the valuable information that it contains". It's so valuable that it deserves a picture but not enought to be modeller in a tool?
Finally he shows that in order to clean the picture from the nasty reflection he used a painting program to manually remove the spot. Oh Gee.
Another guy in a forum states "...but I use white boards. Keep many of them around so that they don't have to be erased".

No comment here. Let's say what will the future tell us.