Rocco,
I'm not sure that Popham fits into this debate, because it's unlicensed.
Licensed airfields are listed in the AIP, which is the definitive source of information about them (supposedly, but see my earlier post above). All pilots should know where to find this information.
At unlicensed airfields, on the other hand, all bets are off. Yes, I know that Popham is not your average unknown farmstrip, it is a well known busy airfield. But because it is not licensed, there is no definitive place that a pilot can go to find information except to the airfield owner. A full briefing from the airfield owner should really be considered essential at any unlicensed airfield.
FFF
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