OK – thanks Nigel – I think I understand! But from my undoubtedly simplistic point of view, we just need to drop the registered user category ‘visitor’, ensure that the term ‘visitor’ , wherever it is used, is understood to mean ‘casual Internet browser’ (not unreasonable I think, and seems also to be the way macalter has interpreted it) , then clean up the hopefully few places where the logic does not work that way at present – because all the ones I’ve checked at random seem to work that way.