For all those wondering. These are the rocks the HOA said are too old. They are small, filler rocks that cover the empty space in the front yard.
There's no moss or notable collection of dust that I am able to see, and they aren't highly weathered in my opinion.
We are told that if H.O.A. Board members are not protected from liability for their actions, no one would be willing to "serve". Yet we are expected to believe that homeowners knowingly and willingly "agreed" to be subject to unlimited liability with no protections.