i don't spend an inordinate amount of time on G+ but i have a few ideas how to improve it....one of your options is a button to add a " +1" to a post or comment with which you agree etc, i wish they also had a button to add a (-1) when it was inappropriate, rude, or just plain nonsense. except some peeps would see a whole bunch of minuses as a badge of honor. actually so would i depending on what community i posted to...it would not be the first time i "stirred the pot"