" This forum is hostile to the idea that archaeology may have value that can be quantified, "

Is a misrepresentation and misunderstanding of what has been said .

What was pointed out to you was :
1)Archaeologists are not reluctant to tackle why archaeological remains have value to humanity. .Contrary to your contention that they were . e.g. in "A question that archaeologists seem to me to be reluctant to tackle is why archaeological remains have value to humanity. "
You also failed to provide any examples where they had been asked the question and were reluctant to answer .

2) The most important values to people are cultural and they cannot be quantified , contrary to your comment " Anything that has value can be quantified using the definitions and methods described in documents such as Stern. "
You failed to provide any method where Stern or anyone could actually do this . Further the value attributed to the WHS by UNESCO , is centred on cultural values which ,by their nature , cannot be quantified and no attempt was made to do the impossible .