I'm guessing "how to spam Google+" is what any discussion would boil down too..
And an open forum about Google+ ( apart from giving it "cred" that it doesn't merit, and giving tacit acceptance to Larry's "fantasy active user figures" ) would definitely fly under the plex's radar ..not..
Discuss techniques 09.00am Monday..watch Google take action to nullify them at noon same day ..ad infinitum
Larry is not building Google+ for us, inside it, more than ever, we / you are the product..or Google's lab rat..and anything of substance they learn about us / you ...they will not be sharing with anyone outside of a very very select pay grade..few of whom post , nor ever will, on Google+..
170 million now says Larry..and of those 150 to 160 million forced in in order to use their shiny new android phones in the rebaptised Google market/ appstore / play..or tricked in, via the repositioned "join/create" link in their Gmail account right next to "log out"..
Wait til he makes it mandatory to be in Google+ in order to have an adsense account..and everyone wakes up to find they have been signed in ..and their real names are all over the internet as adsense site owners..
Already I see peoples faces in my Gmail accounts whom I do not know ..but who in the early days of Gmail asked me for invites..they have Google+ accounts ...I don't..