At root, if someone wants to know if they're welcome at PAX, we've got a strong record on that front: we have panels every show that advance this very conversation, precisely because they're submitted by attendees. We don't define the show because we can't. It is, in many ways, not our show.
And it's not, like, "anybody can come, whatever." It's like seriously, you, right there, come to the show. The show is a dialogue you should be part of; the mix of people walking around is, and has been, crucial. If somebody fucks with you, I will show you a magic trick (called "Our Harassment Policy") where that person's badge disappears.