When locations get posted online anybody can go there and there's no sort of gatekeeper. If it's a historic site invariably someone will want to take a souvenir, scratch their name in bricks, metal detect, tag, whatever. If it's a natural spot (ie: like a place of beauty) then people show up, they show their friends, and it becomes a destination. Eventually the path to get there becomes wider and vegetation clears out, and the site is forever changed. Look at what happened to the "beach" by the Cranberry Bog Pumping Station. It's widened out over the years.
Although I think you can argue that nearly every scenic place in the Pines has been found out by now.
If you're a member of the site and have been participating for a while you're most likely in the demographic of people who will respect these places. Then again, we gave out the location to Ace Campground (which had been abandoned for years) and it was torched a week or two later, so...
There are so many old maps online (there's a link right at the top of the page) that you can find the location of nearly every historic site (even the obscure ones) with a bit of research. That's kind of part of the fun.