Being a web-savvy person myself, I'm not thrown by this particular usability error. It's an easy one to make when working with templates; I have pages myself with this problem. However, I do think it's worth pointing out.
It's standard just like stubbing your toe is standard. Everybody does it sometimes, but it's worth avoiding.
I guess you are right, it is worth avoiding. I am just so used to that behavior that it is what I expect a page to do, but I guess another way to refresh the page doesn't justify confusing the user.
Btw, I was just checking how sites handle this, and here's an innovative approach by Nokia: Let the Home-link take you to a totally different page if you are already on Home:
