The emails of the log posts (L-mail) would be much more convenient if they actually just included the contents of the log post directly in the message. One could just read the posts in their mail without having to click through. So nice.
Furthermore, the emails subject lines should just be the title of the log post. That way you could see if the post is relevant to you without even having to open the mail.
Links to the posts could of course still be provided in the message to provide direct access to the post for viewing images, etc.
But this provides barely more information than is currently in the emails. A subject that is always the same is basically useless. The subject should definitely be the title of the log post. And the body can include the information you suggest, but it should also include the full body of the post as well.