I think I'd back EH to have access to more genuine expertise on the subject than anyone else so....
What - rather than some self-professed "experts"? Are you mad? :D
I suggest winching Stan Beckinsall down from a helicopter to have a look. ;)
Sounds like a good way to protect some stones from being clambered over might be to publish a photo of the top of it! Could even mount it on a noticeboard next to the stone just to keep the strangely curious satisfied, thus preserving the monument for future generations. ;)