I'm of mixed mind about it. Kingpin destroying Daredevil's civilian career was one of the best stories ever in comics. On the other hand, it often feels silly that a hero is trying to stop a villain who is killing lots of people constantly, while also trying to maintain a civilian life. Also, secret identities endanger the people around you, since villains periodically find out who you really are, and those around you are endangered both without their consent, and without the ability to even try to protect themselves.