Google+ is an old timer and probably doesn't need to be reminded. He knows it's full but he still tries his luck. You don't need to remind them every now and then.
......
Thanks for anyone respond especially on the moderator side. Also got curious, let say for example a post is deleted by a moderator but the post is proven not to violate any forum rule could that post somehow be restored from being deleted or once it got deleted its final?
I know moderators review all reported posts before they delete them so it's probably final. A review of a reviewed post is probably a waste of time.
I also read that a post can be restored if it's moved to "trashcan" board.