Followed boagworld tweet to your post …
This beggars belief, it really does.
Maybe third party services are way forward as you can report abusers and perhaps get them kicked off Twitter etc, as well as embarrassing them publicly. I’ve not come across this issue on conference Twitter backchat yet, but if I do some sorry soul is gonna get a roasting! If the abuser was in the same physical room, I’d challenge them to dare repeat their comment to my face …