There's still a lot of talk about whether Google+ is dead or not - but assuming it weren't dead yet, how about the Google+ button that allows the sharing of articles? Is it any good anymore?
A lot of sites have dropped it by now while plenty still keep it on, but it's hard to tell if it's of any use or was just forgotten there.
There is some data about the utility social sharing buttons (bar Facebook) like LinkedIn or Twitter but close to nothing about Google+.
I'm aware that it depends on audience, content etc., so the question is rather when is it useful to keep the button and when is should rather be dropped.