There are some new features in the Slope comments system, and I wanted to point out search in particular. (Please note that it's important to Clear Your Browser's Cache if you are seeing oddities, particularly if you see an ad on the left side of the screen blocking stuff).
Using the Search feature on comments is easy – just click the magnifying glass.
Next, type in what you want to seek. Keep in mind, this searches comments, not the blog posts. That search function has been there a long time and is accessed by clicking the "Search Slope" entry box in the upper right.
