Deathmatch programming doesn't sound very pleasant.
But I hope most people here don't feel a morale hit when their code gets tossed. Inherently, I understand the desire for one's creative work to live on, but that's essentially incompatible with this industry. And I also have found much joy in turning-down/deleting existing services I've written. My team celebrates these events and it's always fun to give that high-maintenance service a viking funeral.