Hub karma and hub score?

No - it's a secret like the Google ratings so that nobody games the system. I would not stress on it - as long as your Hubscore is over 75 then Hubpages won't put 'nofollow' on your links. I never had a Hub Karma score go down.

Maybe links to other hubs shoud be quality hubpages that has been around for awhile. hubpages.com/hub/gh-Authority-Websites-B....

That's interesting, I've never heard of HubKarma going down before.

Yeah, its pretty weird. I haven't linked to any other hubs, and my karma shot up to like 29. Since then, I still haven't linked to any hubs, but it still has gone down.

I don't really think that there is a specific way that it works.

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.