What makes a good content? PART-1

Everyone here is writing, they are writing what they feel like, and are sharing their thoughts through their messages. I personally think, more 1 reader there are 10 writers. So what makes something worth reading?
I have been thinking what makes content a good content? What makes you want to read an article from the start till the end? What type of contents make you want to upvote it, or resteem it?

Is there any secret behind it? What can I do better to give my audience want to spend their valuable time in reading what I have to share?

Should I follow a book? Then which book should I follow?

Should I follow the top Steemians and use their styles?

So, what makes a reader to decide what should they read? Is it the title? Is it the thumb image? Is it the first paragraph? Or, is it the first line?

For people with SP, they can easily attract readers by giving few cents to those who would comment on their articles, but what about those who don’t have SP?

In a decentralized society, all people are equal but some people are more equal. So what happens when there is a crime? To gets to decide the judgment and on what ground one should have the authority to implement a punishment to a criminal?
But this is not the main concern of this topic. I’m more interested in this competition where how can someone sell their products (blogs) to a market where everyone is trying to sell? How can I sell the same item to other sellers?