> What do you make of this message
The comment is telling you that it is more natural to omit the subject of the sentence in this particular context, when people know what you are talking about. If you want to study the comment in detail, a good place to start would be with the と quoting particle.
http://www.textfugu.com/season-6/particle-to/1-6/
> How would you write “the movie was good”?
The comment suggests two versions of the sentence that sound more natural. Those are the parts of the comment which are in brackets.