The 10 points will go to the User who created the topic.  

Thanks for reply. I get everything you said except for "The value in the third field applies to the topic author." 

If I put there a value of 10, what does it do?

The value in the first field is assigned to the user who adds the post, while the value in the second field is for post deletion. The value in the third field applies to the topic author.

For example, if User A creates the main topic and User B adds replies, both User A and User B will receive points for the topic and replies.

What does "Topic Author" means in the "Awarded Points for post Add / Delete"

If enter in the 3rd Column 10, what does it do?

I also checked "

1. Display earned Ranks under comment author avatar

But it does show any of the rank name.