DDD, CQRS, Event Sourcing has created some of the most overengineered applications I have ever seen. Some that have been horrible to maintain some years later.

DDD, CQRS, Event Sourcing has created some of the most overengineered applications I have ever seen. Some that have been horrible to maintain some years later. I'm sure those patterns are used in great applications but personally I would really think hard if I need the functionality before I went there.