Yeah, poor Silbury. But a fence is never going to put off the moron who 'just has' to climb it, is it?
But for my money Silbury's plight fades into insignifcance compared with that of many of our less well known sites. I've just returned from a visit to Picws Du (Y Mynydd Du) and experienced the sheer ignorance such high places are accorded by the masses..... for sure the Mam C and I were the only two out of perhaps a hundred to accord due respect (however you define that?) to a large Bronze age round barrow crowning the summit. No-one else gave a damn. Nothing. The centre of the monument appears to possess the remains of a cist. But not for much longer. Not at this rate. Silbury has it easy. But out of sight appears out of mind.