Here is what I see. Opinions are free and easy to voice and they need not have any merit at all, as mentioned, they could be just air. That's OK, PROVIDED, no action is taken,i.e a purchase based on the opinion. Most of us on CR would prefer information and informed opinions that we can use in making a purchase (unless we're just curious observers). That's why I (others disagree) always appreciated Neuro coming in with his challenges to various opinions that seemed to be stated as fact. Others would presumably prefer he be banned; shame on them (I admit he is occasionally a little caustic - it doesn't phase me because I don't make claims when I don't know what I'm talking about, usually).
Like it or not CR has anything and everything and we are left to sort it out, hopefully in a friendly manner.
My somewhat uninformed opinion is that the new mount is obviously most beneficial for wider lenses, beyond that I'll be pleasantly surprised. I hope I am surprised!!
Now where is the higher level R? I'm impatient.
Jack