Because it's a CNN hit on right wing and local news media to try to turn them into the fake news instead
Have a feeling the network asked Roseanne to chill on the redpills, but also that she really doesn't want to be a facefag/namefag for Q because she enjoys just being with the band of anons. It's not possible for her to be both as we see, so she just had her say and deleted the tweets.