I think I am one of these 'discussion suppressing' types, and the post, and the discussion that followed it, don't seem to get where I am coming from (though I can't speak about any others who this lable may be attached to).
As far as I am concerned, G+ is the facebook we all wanted, or at least it is the facebook I always wanted: It is easy to use, there is post formatting, and no limit to post size that I've encountered. It is a dream come true. And the circles, oh, god the circles...
So all this stuff about 'don't use it like facebook' seems to me to be some kind of hipster nonsense in the form of "we got here first, so lets determine the culture of it and be all snobby to the mass of people who use facebook!" And this view is seen above in this very convo.
The problem is, the first people on here were all techy business and creative types, and they want to create a culture that works for them as well as the Google+ system itself works for them. That's great, I don't care what you do among yourselves, but this snobbyness about "It's not facebook!" will scare people away, either because they won't realise that it IS facebook, or they'll just be offended by the culture they see initially, before they have a chance to filter it all out.
You may want that, I don't. So it's not just a question of muting people. I can mute the snobby stuff I see and be done with it, but the people I want to come here, they won't at first, and they might get massively turned off. So seriously, tone it down, please. The 750 million facebook users are just normal people, not the Silicon Valley types who got first try, or their favourite bloggers or artists, or tweeters that they invited.
If you actually care about this service gaining a mass base in the real sense, if you actually think that people deserve to see and use it, then you'll hopefully be aware that they simply aren't you, that they like the notification button, that they like spamming their friends with nonsens pics, that they like the "is picking my nose" comments that are readable by all.
If not, then fair enough, continue as you were.