Sort:  

But then people should get some kind of reward. Nobody would resteem things if they loose money doing it. Maybe getting a small reward every time someone opens the resteemed post and upvotes it or something like that. Else it is not worth it, because you will just loose money

No, you gain money if the person whos post you resteems strengthens the relationship between him and you.

That is why you must think carefully which post you resteem which further increases the quality of resteems.

I wonder if they count towards the 10 posts after which your payout will decrease, it should!