[pantsforbirds]

They are a joy to use for ontologies or certain types of metadata.

At my last job we had a bunch of entity categories, and each of those had a huge number of individual entity types. When an entity was picked up through the data pipeline we'd query the graph db and convert that entity into whatever the "base" entity is for the category.

It also allowed us to easily query for strange connections or one off transformations that our customers frequently had without worrying about having a more rigorous and structured RDBMS schema for relatively uncommon queries.

Finally it made using algorithms like PageRank in our data science pipeline an absolute breeze.

I loved it, but we never used it as our primary database (postgres & athena in this case)