Indeed, she is challenging him - to be specific about who he accuses of being a troll, a disruptor, a buffoon. Likewise, she challenged Vade at 211 to be specific about his complaints.
I am not blaming you for anything. But if anyone has a specific "beef" about you or me or anyone else, now's a very good time to put the cards on the table and try to resolve it. Hopefully, we can put some of these resentments to bed once and for all.