Rhetoric is useful in many different ways. Pathos, kairos, logos and ethos are things you should always keep in mind. When writing something you need to know what you’re talking about most importantly, show that you really care towards it (showing emotion) And lastly kairos is the timing of what you do.
I have used rhetoric in my writings, but I never intended on it. I never thought about it as I wrote or posted on social media, but thinking back, yeah I’ve used rhetoric.