>>348777They did completely alter the thread, but not necessarily in a negative, shattering way. But for a day after the Kiara screencap, the entire post cycle was taken up by her post and it's consequences (the kata thread mainly), and Risu's tweet hit the thread just as it was forming back to normalcy on the first night, and shattered at least a thread and a half, as well as permanently shifting the dynamic of Risuposting again.
So it doesn't have to be a bad rrat; just a rrat that dominates the discussion beyond everything else.