I'm glad that you're liking it ^_^ The more you post comments, the higher your rank will become. There are different amounts that you have to post between each rank. To begin with, fewer posts are required to increase your rank. But as your rank progresses, the more you are required to post to obtain a higher one. The highest known rank is 'Legendary Dark Knight', first obtained by the Legendary Storm Silves ^_^
~LoD