I think it can only be a matter of time. Not, that no one is using it. I am using it daily and at least the several hundred people I follow do so too, there is

I think it can only be a matter of time. Not, that no one is using it. I am using it daily and at least the several hundred people I follow do so too, there is quite a big community in tabletop roleplaying games for example. But google has for years only done what they always do to their products in recent years: add more and more whitespace while taking away features. And of course, this drives people away. So it is getting slowly quieter over there and of course, all it takes google to finally close it down is one engineer finishing his 20% project for the "next big thing" to replace it. This will be a sad day for many communities on google plus, but at this stage in googles life, nobody should be surprised by products just going away.