I have noticed lately a few people chasing after so called copyrights infringements on Steemit. I am not a lawyer, but I had a close encounter with copyrights infringement once and would like to add a little to the subject.
First off, before we go into that, we need to identify the parties involved, Steemit a social network, Steemian social network blogger, third party.
Publishing a third party content without their knowledge and approval for financial gains is usually frowned upon by anyone. However, there are cases where this is greatly overlooked, and sometimes encouraged and paid for.
In the case of social networking, it is expected and sometimes encouraged for people to post some copyrighted material in the hopes of attracting attention to the material itself and widening the fan base for the content producer. There are limits where this can cause damages to the content producer, but in a social network environment this occurs less than 1 % of the time.
I have noticed some people chasing 
In this case
In my case I like to make parodies of some famous Steemit posts, I have studied Theology and History, yet I have chosen not to write about those subjects yet. That's my choice, my freedom to pick what subject I like to blog about.
Let every Steemian decide for himself, do not police their choices, and if they are making a lot more money than you are, there is nothing wrong with what they are doing, there is something wrong with what you are doing. You have two choices up-vote or down-vote, use them wisely. Do not be overzealous.
( my last porody, hardly made anything, look at this one):
https://steemit.com/parody/@joseph/5-years-addicted-to-altcoins-my-story-told-in-pictures
I was not upset with the high yielding so called BooBs posts, I just went after them with a little fun. I have no right to tell people what to vote on, and neither do you. Unless there is blatant plagiarism in the post, there is nothing for us to complain about.
Steemit is a social network just like Facebook, Twitter, YouTube, Reddit etc. so people should act exactly like they do on social networks, you do not go on chasing someone for posting something on Facebook and getting more likes than you, only then you will be doing the right thing and enjoy your social network experience on Steemit.