Facebook trick never put a link on your post make it in the first comment any one know why?

There are two ways to add a link in Facebook post.

1.The whole post will be a link to your website. When user click on it they will direct to the website.Facebook shows this kind of post to only limited number of fans.

2. The second method is adding link as text with an image. In this way user will have choice to eathier click on the link or on the picture to see details.This kind of link post can be seen by maximum number of fans.

i think its because of the rank of the page