This issue has become paramount in recent facebook disputes. The need for clear easy ways to not only change privacy settings but also remove accounts has become central to one's online identity.This functionality has become the rule instead of the exception in 'web 3.0'. I think jitspoe needs to follow suit and make it easy to remove your forum account and all its associated content.
What do you mean by "associated content"? If you mean everything you have posted on the forums I think that should be a no go.