Re: exposed to rain, doesn't mean they aren't readable
I agree with Halfmad, the ICO are clearly out of their depth and most of what we get from them is window dressing. I doubt the ICO discovered this themselves independently, most likely is a good natured person took some time out of their day and reported it to them.
I can only go by what I observe, and all I observe with them is ineptitude and their clueless approach to the problem