I guess the AdWords block of a Google results page would look a bit silly if everybody started using them; but then why make the facility available in the first place?
I understand that other PPC networks offer a similar feature - do they make it more widely known?
Sorry peeps, didn't make it clear.
I'm referring to the keyword replacement feature, whereby using {Keyword:Alternate} within your headline or copy text causes the actual search term used to appear at that point in your ad. "Alternate" appears if the resulting text would be too long to be used in AdWords.
I'd be pleased that you know, keep it to yourself, and take advantage of the facility.