I guess you'd have to be there to have a sense of how it is at the table. We all laughed out loud about the idea of x-cards one time, because the consensus was (and still is) that if someone has an issue with something, we're all adult enough to broach the topic with others at the table and resolve it as a group, face to face, on the spot. I know it's a foreign concept to some, but it is possible for people of different races, genders, and orientations to get together and enjoy each others' company without being thin-skinned and looking for reasons at taking offense to one another. The one thing we all have in common is that we're a bunch of DnD nerds, and that works for us.