I thought that the last 2 sentences in MD's email were hilarious.  

And yes you will be liable but nice try please forward me the link once you are done for my counsel to add to the complaint

Ask Joe he has the email and his name since he wrote them a ck

(ck probably means check)  I believe MD is fed up with this crap.  Eventually he will handle their slanderous statements in court.  I presume he is quiet with investors since he cannot give out info unless it has already been made public.  I would assume folks are asking him to disclose info individually that is still in the works or not yet public so he cannot really respond.  It would be a waste to respond individually.  I suppose he could put out another update PR to address the concerns, but this just feuls the negative campaign.  It does give us investors info, but I would prefer to see results as I can wait for results to come.  

Now the negative conjecturists are another story and he should be dealing with them, which is why he is responding to them.

Btw, I don't think some of the bashers work for MM (i.e. naked shorters).  I think they work for Elkind, Lagone and/or possibly Steve White.