Feel free to have a look again and let me know your thoughts. emil@neo4j.com or @emileifrem.

20 of the 25 biggest banks in the world use Neo4j today, and fraud detection (specifically fraud rings) is a really popular use case. (So much so that if you search for "fraud detection" in an incog chrome window, https://neo4j.com/use-cases/fraud-detection/ is on the first page of google).

Btw, we've scaled out horizontally for reads since 2011 but our initial Paxos based implementation was shaky. Since then we've revised it twice and our third generation Raft based architecture is significantly better. If you add multi clustering support + causal consistency and a bunch of other improvements I think our horizontal scalability story is very different today from a few years ago. Lemme know if you try it out and disagree!