Sorry I didn't see your question sooner. I don't have my own website so I am not risking as much as you, but I don't think there is huge risk involved. If you know about paypal, it has tons of personal info of yours, but it is simply a trusted source and we can just accept it at that.
I would ask hub pages help and there is a spot where you click on "contact us" and specifically ask them your question. They respond very quickly. Also I would logically deduct that so many people on hubpages have other accounts and webpages to protect and they are on here.
Good luck- hope you stay on hubpages and write.
Then Google AdSense can check how many pageviews & clicks you got, so as well how many money you earned!
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.