I don’t use Daily Notes a knowledge and therefore remove them from the knowledge graph. They are where I capture the events of the day. Once captured, important things are synthesized into more complete thoughts in separate notes that are linked back to the day. Conversation’s I’ve had with people are linked via their @Contact note. The Daily note is only kept as a journal of sorts. Trying to title them all will work in the short term, but I hope you will have more days than you have words to describe them.