@bradrh I was more commenting on your suggestion that the tesla only sites be marked ‘tesla_only’ instead of the worldwide norm (rightly or wrongly) of ‘customers’. I don’t think we should change from what most people tag.
For the nacs only adapter (and places with other similar restrictions) I get it and unsure if a specific access tag value is needed
If you can charge it is based on what socket it has. If you had a CHAdeMO car and access =yes then and it was socket:nacs you cannot charge. It would be strange to suggest access=(some restricted status) because some could not charge at a station with just nacs or just CHAdeMO as you have a different socket on your car.
If the cars manufacture that can use an adapter the car company will tell you and issue/authorise an adapter from nacs to ccs1. Then access=yes makes more sense.
I do think the issue will go away soon as more nacs open up but I agree things are not ideal at the moment but unsure how to tag but I think it is the best with what we have. Maybe add some extra info/note/description?