I cannot think of any human interaction that cannot be improved with humor. Well, except perhaps bad news from your Doctor.
Obviously you are earnest, (not Earnest) so I will propose that in answer to your #1: some FReepers will not answer because they do not have the specific information or expertise to post a helpful reply (I exclude prayer requests from this comment).
And to these, we ought to be especially kind. :)
OK, you Pass.