Dear Dr. Emmons,
> p.s. We correspond so frequently, perhaps you could address me more informally. (E.g., use a comma.)
Ahha! It's all been about the commas, hasn't it. All that has kept you from issuing, me, a, proper rejection, lo, these many, many months, has been my miserly use of commas. This moment is nothing short of epiphanic! At last I understand!
> Perhaps you would like to join our Editorial Board?
My goodness, yes! Nothing could please me more than the chance to help issue rejections for your esteemed journal. (I suppose I'll have to say "our" esteemed journal, now.) Yes, yes, and more yes! I am ready and eager to serve.
So eager in fact that I beg you to tell me the moment I am installed on the board and am authorized to issue rejections. My fingers are twitching in anticipation.
YOS, TIA, etc.