My dad died from cancer a year before she disappeared my uncle died the same year same reason and still fresh in my mind when she did that. I thought it was inappropriate to use cancer as a joke by fooling people. I seen the sympathy directed at her and was genuine. I doubt I would talk to her if I ever seen her again..
I understand your point of view, you knew her...
I didn't know Artgal but I don't appreciate anyone who uses cancer as a joke. My mom doed of cancer and I have lost 3 uncles to it so I am not a fan of someone who does that just to get a laugh or sympathy.