I was thinking about this too, as there's people telling what to do on Stephane's Facebook page too, but he is not asking for any advice either. But commenting is part of this all.
People should know better is my opinion. I know on the facebook group forTCR admins would give guidance and remove stuff that could be seen to infringe.
This doesn't take place in a vacuum, in real life there are not always admins to enforce rules!
I think you are drawing the line in the wrong place, specifically for this event which does not exist so has no rules, and generally for all events too.
I was thinking about this too, as there's people telling what to do on Stephane's Facebook page too, but he is not asking for any advice either. But commenting is part of this all.