When you comment to my blog, you click on the last “reply”, rather than one under someone else’s comment. When you comment like this, an email goes to the person who made the comment above you, which in this case is my friend Liz. (If you come to this page, you’ll see how your comment is nested in hers). I see you made a test comment below. That was the right way to do it.

(Hi Liz!)