Thanks for your contribution! When a business has closed, rather than deleting the node entirely, only remove information that's no longer relevant, and keep the address that still exists. The editor you're using has a "downgrade" option to do this easily. Second, the "name" field should only be used for places that actually have a proper name, not for labels or descriptions. See https://wiki.openstreetmap.org/wiki/Names#Names_are_not_for_descriptions