I have noticed the following comment left pretty much verbatim, and it bothers me:
This does not provide an answer to the question. To critique or request clarification from an author, leave a comment below their post - you can always comment on your own posts, and once you have sufficient reputation you will be able to comment on any post.
I'm not a moderator, I have no access to anything above the most basic review queues, so I don't know if this a quick response available at higher reputation levels.
But leaving it on new new users' posts doesn't seem terribly helpful. Why suggest to leave a comment when they can't leave a comment?
To be constructive here, a possible solution would be to offer two separate answers depending on the rep level of the poster, with new users getting a slightly more helpful version that does not suggest leaving a comment.