The single compelling reason to use DebateGraph is: spatially-organized thinking.

2 advantages of spatially-organized thinking: 

1. Gives you details AND overview of the subject

2. Contextual understanding made clear

7 advantages of DebateGraph:

1. Easier to register personal opinion without attacks
2. Quieter discussions (less personality, more ideas)
3. Speeds up solution finding (faster nav. through the solution space)
4. Means that communities can collaborate
5. Drives action
6. Encourages divergent/convergent thinking
7. Allows people to make progress in scenario building

Note: September 12, 2016. Another advantage of the maps is that you get a representation of the landscape.