Just as an FYI, there was a completely in character reason why she did what she did. She went on a pilgrimage to commune with the stars, and they informed her that they had been corrupted by an entity seeking to destroy them, and as their last act she was told to burn what was left and start something new. So she did. No griefing.
And now we think Mariah went crazy. Talking to things that aren't there
