Simple User Rank Comments provides you another easy way of increasing time on site using a simple game of competition. This new plugin creates and displays user rank titles based on there comment count. User ank is auto display after pseudo in comments.
How To Use Simple User Rank Comments Plugin?
The plugin is easy to use, simply install and activate it. After activation visit your admin area Dashbaord -> Comments -> All Ranks for modifying and creating new user ranks. 
After adding ranks, click the ‘Save Changes’ button then open a post with comments and see how it looks like.
For manually adding user rank in your comment’s template file you can use the following code:
<?php if(function_exists('get_user_rank')) {
echo get_user_rank();
} ?>
