that is actually kind of a good idea, but you do still need to know where the boarder is too, maybe instead of the whole wall being visible, just the ground areas are clearly visible instead so you do still know where the boarder is, but not letting it get in the way?
My thought was, once you have been playing long enough to be annoyed by the borders you don't need to see where they are because you just know. So then you could just un-check a box and they disappear.
But putting something on the ground would work too.
