1. A method, in a social network system including a processor and a memory, the memory comprising instructions executable by the processor to run a tracking application that is integrated with a social network application, for prioritizing online comments on a social network web page presented on a graphical user interface associated with the social network application, the method comprising: detecting, by the tracking application running on the processor of the social network system, an activity of each user of a plurality of users consuming a content presented on the social network web page, wherein the content is presented by the graphical user interface associated with the social network application: determining based on the detected activity, by the tracking application running on the processor of the social network system, time spent by said each user of the plurality of users consuming the content on the social network web page, wherein the determining time spent by the user consuming the content, comprises: for content that is consumed by the user is not integrated with the social network web page, determining a difference in time between the user linking to the content from the social network web page and the user returning to the social network web page; storing, by the tracking application running on the processor of the social network system, the determined times spent by the plurality of users consuming the content in a data structure of the memory, to normalize the time spent by said each user of the plurality of users based on past viewing behaviors of the user on the content, indexing, by the tracking application running on the processor of the social network system, the determined times spent by the plurality of users consuming the content; responsive to the user entering a comment on the content via a network, determining, by the tracking application running on the processor of the social network system, a depth of consumption of the content by the user based on the determined time spent by the user consuming the content, wherein the determining the depth of consumption of the content comprises: identifying the time spent by the user in consuming a section of the content, wherein the identifying the time spent by the user in consuming the section of the content comprises comparing a determined section of the content with viewing time spent entries by the sections that are indexed; changing, by the tracking application running on the processor of the social network system, a promotion of posts generated by the user to other users of the social network web page based on the determined depth of consumption; ranking, by the tracking application running on the processor of the social network system, the comment entered by the user among a plurality of comments entered by one or more of the plurality of users based on the depth of consumption; and presenting, by the tracking application running on the processor of the social network system, the comment entered by the user and the plurality of comments entered by the plurality of users, on the social network web page of the graphical user interface of a user computer in the order of the ranking to prioritize comments entered by users who spent more time to consume on the content by comparing times spent of the users who spent more time with times spent by the rest of the users that consumed the content, wherein feedback on the content is rendered on the social media web page according to the prioritized comments.
8. The method of claim 1 , further comprising normalizing each determined time spent by the plurality of users based on past viewing behaviors of the plurality of users.