A have a few suggestions for the forums.

Main Character(avatar): Be able to choose a "main character" that will show as a forum avatar and you could also include the character name and guild we are in under the avatar? (kind of like nexons forums) This will make people more recognizable

Off-Topic Section: This is a given for any forums. Why spiral knight doesn't have one idk. :/

New Replies Button: Shows the topics you have posted in that have new replies. So you can easily check if anyone replied to you or whatever.

Unread Posts Since Last Visit: Shows all topics with new posts since you last visited the forums.

Child Boards: Break each board down into child boards to better organize the forums.

Delete on post: Be able to delete your own post. If you want to get rid of the post instead of just editing it.

Delete/Lock your own topics: Will make it easier on the mods. and if a topic is no longer needed (like figuring out the answer to a question before someone replies) you can get rid of the topic.

BB codes: Just for the same uses as the HTM. also we could include bold, italics, font size, color, ect.