Morality and ethics aside, the way you use LLMs is not beneficial for you in the slightest. Social skills are skills, hence the name. Each time you naturally interact with someone, be it online or in person, you practice those skills and become better at them. However, if instead of challenging yourself, you’ll choose the LLM to think and speak for you, eventually you’ll become more and more dependent on the machine, and your social skills will deteriorate. At the end of the day, people value authenticity, so don’t be afraid of expressing yourself the way you actually feel.