Something I don't understand

[Krys]

You know those little banner things under your title? What are they?

 

[Omega Pirate]

Scroll Down.

 

[ellie]

You know those little banner things under your title? What are they?

They show your post rank. A full list of them, and how many posts are required for each can be found here:
http://www.serebiiforums.com/faq.php?faq=new_faq_item9#faq_usertitles
The only people who don't use them are mods and above, who have user rank bars according to their rank:
http://www.serebiiforums.com/faq.php?faq=mods#faq_staffdo