It isn't true. Literally the first dialog you get when starting the G+ app for the first time asks you if you want to sync current and future images to G+. I be

It isn't true. Literally the first dialog you get when starting the G+ app for the first time asks you if you want to sync current and future images to G+. I believe it's the dialog from the article that said "1. Wifi 2. Wifi+3G 3. Never", which he mentions hitting Wifi+3G without reading what it says. Also, it uploads all of the things it does sync to a private folder. No one but you can see them until you share them.