When I first got the blog going, I wanted a trackback feature. So I added Haloscan code. However, Haloscan's trackbacks are added manually and thus no one hardly uses them. Along with that, some readers aren't able to leave comments, which is disappointing as well.
I'd go back to Blogger's built-in comment feature, but I don't have the code-savvy to excise the Haloscan code and replace the Blogger comment code.
What I can do is add Blogger's new linking feature, as the code is relatively simple to add to the template and it updates automatically. I have a compromise of sorts for the moment. :)