If I recall correctly, DR DenMother was an active HHW poster during the early 2000s. She (along with DR JRand) were responsible for talking me into coming to HHW. I had interviewed Susan for a magazine called Classic Images just prior to that.
I don't recall when she left HHW, but it was not due to a dislike of this wonderful board. She had problems with some jerk stalker guy who wouldn't leave her alone, from what I understand.
Susan was a child actress from 1958 till the mid 1960s, and we all adored her. She went to school with DR Jane and BK. I had a wonderful visit with her on my first trip to NYC back in 2004. We had a lovely breakfast together and she took me around to some of her favorite shops.