I'll give an example first, and then explain. So, a comment on this answer reads:
I, your dashing and charming husband, came onto this site a few weeks ago to research an anniversary gift for you. I read this entire page, including this answer, and ultimately bought you a book and only now just now realized that you, my wife, wrote this. – Michael Haren Sep 20 '10 at 2:29
Now, how fun and amazing is that?
Is there some way we can collect and highlight great things like this that happen on our site?