Every ex TWA guy i've personally met was/is Great!
As an FO I just do not have time to check on jumpseaters. Even as FB I'm busy. I think it's great if a CA goes up and checks. I fly international and only some CA's print the boarding non-rev info.
NO FB jokes, believe it or not, I do alot. When it's my left seat time, i'll try to follow this example!