Fortunately, there are many people, hence many interpretations. But Skywriting is meant to be interactive. There are plusses and minuses to this.
Spontaneous conversation is faster, but it is also less reflective.
Email gives you time to think, but you don't need to wait to reply, or to receive a reply, as long as you do when you mail a letter. That's an empirical question and needs to be tested. You may be right. Though I brought out mainly counter-evidence, I do want to say that your posting was a thoughtful one.