Fair points - we don't allow failed servers back into replica sets and rely on writing to multiple nodes instead of the disk as source of truth. This may not s

Fair points - we don't allow failed servers back into replica sets and rely on writing to multiple nodes instead of the disk as source of truth. This may not suit everyone and absolutely does not suit financial transactions. You can bend Mongo to do it using additional collections and money movement logs... but, why bother when it's simpler to use MySQL/Postgres?