No worries at all, it's perfectly fine, this being Netherlands :)

Yes, the normal thing is to update the existing node when a shop or other entity changes to preserve history.
In cases when an entity moved and we have the previous location mapped, personally I prefer moving the node, thus preserving the history of the actual _object_ - when was it first mapped, where was it, when and what contact info was added. This also allows to follow it around, as it is moved.
In a way it's more content or container oriented - if we preserve the object, that's content, if we preserve the place, that's container.
Don't recall seeing a global consensus on this, so I yield to the local community on this one :)

Noticed that the new name includes "Mini Museum" (wasn't there before) - that seems to be placing object category in the name, not aligned with the OSM principles. Should that part be removed?