You are right about everyone in this forum understanding this basic part of Bitcoin knowledge but for me I don’t see anything wrong with what he said, looking at his profile you will see that he is a newbie and a newbie he or she will try to bring a topic that will make him learn more about bitcoin, this post might not be that helpful to you but some people will join the forum newly and will read this post and learn more from it, we can never be the same and we can never be perfect because no one is perfect, you may know some things and you may not know some and that’s how life is all about.

Here in the forum, we should let everyone express their opinion on what they know so that we can correct in some way they have mistakes, I’m not saying what you said is wrong but we should also understand that newbies in the forum are the to correct and teach them some things that they don’t understand, some words we say can discourage them from posting in the forum next time they want to post.