I see nobody has claimed "Expert" status yet.

Against the pool of all fliers, I think we are all experts or close to it. Against the pool of other FT'ers, I'm probably an intermediate. I know my own air/hotel programs very well, but irregular ops landed me on, for example, an Air France flight, I wouldn't know much more than Joe Sixpack.

My int'l flying is relatively straightforward - to major airports on major airlines. I think to be truly "expert" one would need a greater breadth of experience.