I wouldn't post a new note of the same content, that would be worse. I have used an older post to reply ro someone else though. 

I've never been a "Hey! Look over here at me!" type of person. If you need extra convincing to give me attention, then you probably have better things to do. If you do find what I have to offer to be interesting, then you'll look for yourself without me jumping in your face and waving my hands.