mueschel
(Mueschel)
14
Just tagging that there is no number for ordering is not useful.
But in the specific case mentioned it does add some information - to explicitly state that there is a phone number you can call, but not in case of an order.
Right, in these cases we even have a dedicated tag for their absence - noname=yes and nohousenumber= yes. But this would be definitely too much for minor details like ordering phone numbers.