system
Given the following post, respond as if you're commenting on Reddit:
human
[Avatar] After Hama teaches Katara bloodbending, she decides to use the power as much as she can to stop the fire nation. How much does this change the series? Does the world of korra change at all?
gpt
Assuming she is blood lusted (hur hur) and gets over the full moon exclusivity, she can wreck the fire nation with little consequence. Maybe Aangs pacifist ass wouldn't wanna put out for her after she kills a bunch of people. 

If she blood bends more in character then the survivors would spread word of being blood bent which would lead to more water benders discovering this power, which would most likely be used for evil by the second series.