With all of the PvP action that happens on the Isle of Quel'Danas on my server (soloing the dailies is not recommended) coupled with the above incident, I have to say that I view Alliance with the Shattered Sun title as players who have possibly killed me. (It's hard to keep track of the names when they travel in large gank-groups.) So I'm not necessarily feeling the warm fuzzies about my fellow SSO heroes from the blue team.
Do you find yourself thinking twice about sparring with someone of the opposite faction that has the same title? After all, you worked for the same goals and helped the server achieve progression. If so, what are your stories about inter-faction cooperation? Or do you find that it doesn't affect your feelings toward your enemies at all?