schulken, on 2014-September-09, 10:16, said:
So now with BBO we have thousands of "spectators" watching on viewgraph. A side question is, will the viewgraph operator's software even allow him/her to revoke, as the player at the table has? Assuming it does, the cyber-sphere will light up with those who were paying attention.
No, it doesn't. If something happens at the table that isn't a legal call or play, the operator generally notes it in chat.