Does a hubber's hub score drop, because they stop following other hubbers?

You are doing yourself no favor by obsessing on hubber score and hub scores (two different things, BTW). They are much less important than you think. If you really want to help yourself in all ways -- Write Some Hubs!

Make them interesting + informative and on subjects people are searching for.

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.