Well, I answer your question with a witty and interesting response... and you then rate my answer - from nul point up to a magnificent three stars..... - you can also respond yourself and award yourself wee red stars if you feel so inclined (not many do that round here... but watch out for **** and �����)
You can also change your mind at a later date and really confuse the issue....
Most folk don't bother with the stars actually, except as a bit of fun !