This post is going to have the label "FAQ." I don't have a section or a Page for Frequently Asked Questions, but I'll use this label for posts about how to use the site. All the labels are listed alphabetically in a big long list in the right sidebar. Additionally, "FAQ" can be typed into the Search box towards the top of the right sidebar.
Well, now I have had fun taking a screenshot of a Comment section.
Observe the clickable link consisting of one word, "Reply." If you consider my comment absurd, you can click "Reply" to create a new comment text box nested under my comment to which you are responding. This duplicates my absurd comment and sets it visually right up close to your Reply.
Observe the grayed-out words in your new text box, "Enter your reply," rather than "Enter your comment." You have a nested text-box in which to type "That is absurd!"
This Reply option is useful when there are multiple people posting comments, perhaps about multiple topics.
However! Do not just hit "Reply" all the time, as a default! "Replying" to a Reply or Replies causes the software just to keep nesting the nested, and so on, over and over. That makes unnecessary mess for readers to wade through, and also pretty soon becomes very difficult for the software to format. It becomes so narrow as to be unreadable.
So most of the time, avoid "Reply" and use the Comment text box always provided at the bottom of the string of extant Comments.
When you have typed in your Comment, decide how you wish to be known on the blog post. Drop down the little menu to see your choices. You can use your real name, a nickname known only to family, or be anonymous. You can have a photo or not. If you feel you have made a mistake, and "Published" same, write to me and I can delete your comment and help you to post it a different way.
Notice the option "Notify me" at the bottom right. If you check the little check box, Blogger will send you an email message to say that follow-on comments have been made. Nice, huh? It works; I tried it.
At the bottom left is the "Preview" button. It is optional. Many people notice their own typographical errors more readily when reading something in "Preview" format.
It is helpful to the Commenter to avoid the understandable temptation to enlarge the text box by dragging downwards the lower right corner. Do avoid that, as that will obscure the "Publish" button. Such is the flawed software.
Finally, you can launch your comment by clicking the big blue "Publish" comment.
So, nobody has to live in fear here. I am the Administratrix, all-powerful and benevolent. Should you wish to have a comment deleted or altered, email me.