I'm another that likes it overgrown, I remember back in the mid-70's I would drive my car back there at night and enter *yes you could then* and it was overgrown and all, kind of like a maze. But I'm a firm believer in letting Mother Nature take back what was once hers.
Plus there is and I will attempt to find it, information on the fact the all the bodies have been moved out of B.G, back in the late 90's. So if that is the case, it would not matter if Mother Nature had it's way, as the Spirits do remain (not as strong as back in the 70's etc..).