In the days when I used to use Twitter on a daily (or hourly) basis, I would Use Qwitter to identify who had stopped following me so I could do the same in return. It sounds immature but I actually used the account as a bit of a marketing tool and decided to replace these quitters with valuable followers instead. A similar Chrome extension has been added for Google+ called Uncircle+, allowing you to remove those inactive users who never post from your circles.
The extension itself is fairly simple to us. Just make sure you are logged into your Google account, hit the UnCircle+ logo in the top right corner of your Chrome browser and a list of your circled contacts will be automatically generated. Follow the prompts and the extension will identify which of your contacts are inactive and give you the opportunity to uncircle them at the touch of a button. If you have new contacts who are inactive but are soon to be posting then simply uncheck the box next to their name before pressing the “Remove Selected!” button.
Hopefully you’ll find this useful and if not now, then in the future! Credit goes to Sidharth who originally found it and I unfortunately cannot find the developers name.
Please note that it will take email invited contacts into consideration too. What do you guys think?