It seems to me that, in a way, FS was a tragic figure. Apparenlty her original intentions were just to say "Hey, look at me, I'm somebody! I'm Anastasia!" If left alone, it probably would have ended there, but, as I said, others got involved and the whole thing just snowballed. FS was just happy to be noticed, so she went along with it. Soon it got so big that, even if she wanted to, she couldn't admit the truth. She didn't want the rejection that would bring. Towards the end of her life, though, she had lost interest. When she moved to the U.S. and married Jack Manahan, it seemed she was done with the whole thing. She just said: "Either you believe or you don't believe."
I've also revised my opinion on Gleb Botkin. For a long time I thought it he was in it for the money. However, he really believed her. He let this belief cloud his judgement, and he made enemies of the surviving Romanovs because of it.
All this because some poor misguided woman just wanted the world to know she was alive. Sad.