Coreference as Service by Bernard Vatant says the ontological emptiness of an identifier mapping service determines its usefulness.
I wonder how to know when that will be true?
That is I can imagine use cases where empty mapping of identifiers is good enough for some purpose.
In the case Bernard is talking about the identifiers are of geographic locations. Perhaps there is a common enough frame of reference for that to work.
On the other hand, I can imagine coreference services with mappings based upon “attributes” associated with identifiers.
How to judge between which one to use seems like an open question to me.