The author of this piece of clickbait canard didn't even bother to do his homework properly before stirring this particular pot. It's very similar to the people who use old restoration work photos of Stonehenge to push the rumour that it was only built in the 20th century, strange really when John Aubrey drew it in the 17th century and JMW Turner painted it in the 19th century, they must have been seers.
Anybody with a working brain knows that when re-erecting a fallen stone the first thing an archaeologist looks for is the adjacent socket, which they then use to reset the stone as accurately as they can. Keiller wasn't perfect but he did a good job with what he had and where a stone wasn't present he erected concrete markers in their place it's not a secret, except to people with a an agenda to discredit our ancient sites and heritage it seems. If Avebury is a 20th century invention maybe the author of this particular hit piece can explain William Stukeley's drawings of Avebury from the 18th century, another seer perhaps?
From the increase in vandalism at these sites to the often amateurish attempts at discrediting the authenticity of them it appears to be a concerted effort by somebody to push people away from them, I wonder who the vested interest is in this case?
Something is not right. This message is just to keep things from messing up down the road