I’ve often asked myself that question. They never seem to hold up any signs that identify specific anti-christian, or even unchristian, behaviors they want stopped, and I’ve never heard one say anything specific through the bullhorn. They just keep on shouting that you have to accept Christ as your personal savior. Which I haven’t, but I’m sure a great deal of Comic-Con attendees have - as much, or surely nearly as much as have done so in the general population. I love Comic-Con, but it’s almost mainstream. I certainly don’t see it as a gathering that would attract unusual concentrations of anti-religionists.
So, I assume it’s a great photo op. There are hundreds of photographers in attendance who frequently get them in the background, and the attendees are usually too good-natured to give a shit, so they’re in no danger as they wave their placards in the shot. (As bbtimquinn also said.)
