You'll by now have noticed that some peoples forum posts display live information about their in game character, like in this thread, to the right of the post under where the avatar should be displayed.
Flambard has mentioned this already but it was lost in a sea of news updates so I thought I just mention it again here as it's pretty cool.
If you go to the User Control Panel you can link your in game character (or several!) to your forum account, it's pretty simple to do and the settings are here (you must be logged in for this link to work).