When do you become a pro in writing and publishing hubs?

Some people are very good writers, but never get the hang of making good Hubs. Some people have never had any writing training but produce Hubs that perform well.

I can say that a score of 100 and 1000 "hits" on one hub might still mean no earnings. Is that professional... or not?

When your hubscore goes to 100 and you get 1000hits on one hub I guess.

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.