The problem is, as was pointed out, you can't know if someone is in the process of replying while you are in the process of deleting. ;) Plus I think the implementation would be kind of worrisome since you would want to make absolutly sure there was no loop hole to allow deletion of nodes. In other words, if no one can delete nodes then you don't have to worry about securing the method of deletion. If any *one* group can delete nodes then it becomes a security concern. Maybe thats false reasoning on my part but at the moment it seems legit to me. ;)