Question — "What accounts for the differences between these 2 fliers?" — answered.

Asked here, 2 days ago. The advertised event is this evening (7:15, Room 3253). From the comments thread:

I assume you objected to the original "Pissing Match" poster planned for your event?

That's basically it, from Ignorance is Bliss. When I was invited to participate, I didn't want to commit to being on the other side of whatever our guest might decide to say. I prefer conversation and commentary, drawing out questions that somebody else might not be asking. I'm not going to promise to put up a fight. Maybe I'll agree with Professor Garry.