I am only the messenger and posted what I was told. Here is how I see it....
It is the same principal as supporting something on 3 sides and add weight, it is weak. support it on all 4 sides and it is stronger. If there is give in the floor and it goes down some, some where else is giving also and it will be at the weakest point and that being at the wall.
It makes sense to me. I will just put mine out and save any troubles.
Nights camped in 2010 = 009