Sure you can, read the top part of the CoC.
Note that the following guidelines are not exhaustive, and may not address all manner of offensive behavior. As such, the forum moderators shall have full discretion to address any behavior that they feel is inappropriate. Also, suspension or banishment from the game will always result in the same in regard to forum access. Your access to these forums is a “privilege,” and not a “right.” Blizzard Entertainment reserves the right to suspend your access to these forums at any time for reasons that include, but are not necessarily limited to, your failure to abide by these guidelines.