Because millions of people are using it ? I use it daily, I'm subscribed to ~40 communities mostly tech and photography. The signal/noise ratio is way better th

Because millions of people are using it ? I use it daily, I'm subscribed to ~40 communities mostly tech and photography. The signal/noise ratio is way better than facebook. I've not used facebook in several years so maybe it's better now but it did not add anything to my live, quite the contrary, G+ does.