Why do some hubbers do not have hubs,but they have many folllowers and fanmails?

My guess would be that they have moved their work to some other place. They will not get fan mails if there are no hubs.

Some of them seem to just "follow" as many as they can, to get followers back. Have read that to click on some means getting nuisance advertising etc, but not sure if this is true.

They want to only listen what others says and do not want to contribute their views and opinions.

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.