Instead of banning the sub for whatever reason "they" figured they could use it for easy propoganda. You might think this means "left leaning" propoganda, but in reality it is both "right and left leaning". Instead of being full of a united group of people: "we hate the blue and the red" it is full of selfish people who think they have taken the "redpill"

"I am with blue" "I am with red" "red more evil" "blue more evil"

They are still stuck in a state of division arguing about which side is more evil. Even though each side is equally evil because in reality they only pretend they are opposing forces.

So that's why it is still up. They don't need to take it down. Just fill it with propoganda for both red and blues to pointlessly argue over.