I guess loads of people will want to know what these are. Following is a list of some useful vB code. I'm putting it here because not everything is in the FAQ. The example codes have spaces in the tags to stop them working, don't use spaces yourself.
Spoiler buttons
Use 'em to hide away spoiler information when talking about anime.
example :[spoiler="click here"]boo![/spoiler]
code:[ spoiler="click here"]boo![/ spoiler]
Image sigs
You link to the URL of an image that is stored somewhere and it appears in your signature. The signature can be edited in your user cp.
example:
code: [img ]http://www.christiananime.net/banners/djnozcaa.gif[/img ]
those are the main ones i've been asked about. Will add more on request!