My 2 cents is that the new g+ takes us backward on many fronts and forward only on some fronts (easy to share on twitter and facebook) - since it makes posting harder. In the higher spirit astral worlds we have advanced telepathy, i.e. rendering 50-500 pages in 1 second via conceptual telepathy - no images or language. What the New Google+ format is doing now is taking something that is more like that advanced telepathy and trying to make it more like verbal language, limited and unevolved, like the medium and low astral realms where some people live between lives.
One cannot reduce a concept that takes 40 pages to explain to 140 characters or lines, things are always ultra complex and nuanced, wars appear because people reduce everything to "minimal communication" - like in 140 characters and black or white. There are always 1 trillion nuances.
It's much harder to share things like you would in a scientific way - with more information - lots of features vanished that were critical to communicating ideas - turning everything into a expanded twitter like thing has a global "IQ lowering" effect. G+ old (or current for those who didn't switch yet) version is awesome and allows everyone to share a lot of useful stuff fast. The new format can be an option for those liking a simpler interface and the old version can remain available for another 40 years. :) Forcing the new version is a big mistake.
Einstein warned us that technology will lead to a generation of idiots, since we think that in a 10 word or line post we communicate:). If everything is communicated via 10 words or even 100 lines, we will have warfare going on for a long time. Please leave the two versions as options and let them work in tandem - don't destroy the old one. Thank you so much for listening, if you happen to work at google. :) ♥