Anyway, if you wish to comment on a post, look below the post and see a teeny, tiny link that either says "No Comments" or lists the number of comments such as "1 Comment" or whatever. Click on that link.
By default, Google will try to get you to sign in. Ignore it. Look for the "Anonymous" button and click on it. Then you can leave a comment without any further hassle factor. It may takes awhile for your comment to show up because I have to approve each comment. Long ago I didn't bother approving comments and, my, oh my, how I got burned by the spammers.
Anyway, that's how you do it. Thanks for reading!