It looks as that Google+ is following the path of Facebook as Google+ introduces a new feature on their site. The latter has added a feature that Facebook was using for a longtime now – the “ignore” and “block” options.
Ignore signifies that users is not going to see what the other person shares on his page. The new block option regulates the means a person can network with what a Google+ user is sharing. Both intended to reduce the social media clutter on Google+.