With this concept of quickly creating new tasks and with the GTD and How I work with code ideas. An idea for a new tool popped up in my head.
The tasks that I create based on working code, are cluttered with my own opinions. With the Getting Things Done approach we could have an inbox with Action times created as team members work with the code. In a Weekly review each item in the Inbox could be manage, prioritized, discussed. Some items result in items on a sprint backlog, others simply result in other team members explaining parts of the system to each other.
This weekly review could be conducted outside the normal delivery cycles, as they are partially meta tasks for achieving a common mindset of how and what should be developed. The result could be new features, refactoring, extra testing, reduced bugs etc.