Every year many thousands of archaeological objects are discovered by members of the public, mostly by metal-detector users, but also by people out walking, digging their gardens or whilst going about their everyday work.
The point of the scheme is not to record all coins (or finds) made by archaeologists but rather to report chance finds made by members of the public.
Dave Welsh --- once again --- convincingly displays his misunderstanding of PAS by claiming:
The argument that those who go clandestinely prospecting for coins with metal detectors disturb archaelogical sites has been convincingly refuted by statistics compiled by the Portable Antiquities Scheme in the UK, which demonstrate that only 2% of reported coin discoveries are made by archaeologists.
If one of the aims of PAS is
To advance knowledge of the history and archaeology of England and Wales by systematically recording archaeological objects found by the public
we would expect the PAS to be reporting relatively few finds by archaeologists. That is the nature of the scheme. (Please note: PAS covers England and Wales, not the whole of the UK - there is a difference.)
Finds may be made by the public in what Welsh calls "cultivated fields, pastures or wooded areas". But today's "cultivated fields, pastures or wooded areas" may have been yesterday's Iron Age farmstead, Roman villa, or Medieval village. The target areas for Welsh's "coin treasures" could be archaeological sites. The correlation could be significant.
It is about time that Welsh listened to his fellow coin collectors. And he could learn something from Paul Barford's sensible comments on the PAS both here and elsewhere.