Hello!
A good way to look at it is that everyone that follows you as your audience. You have built up your followers and they are interested in you and what you post about. If you come across a post that you think your audience would enjoy, you should resteem it. This benefits your followers and the person's article you resteemed. This will naturally make your blog stronger over time.
Pure resteem blogs can be looked at like a magazine. Someone is just organizing certain types of articles so people can find certain info easier.
Greetings!!!
thank you for your prompt answers and for your support, greetings!