Twitter/X is, basically, a private company and can do whatever they want with your postings and information. Elon Musk has shown he can and will treat accounts and postings in whatever manner he chooses. For that matter, other online services, even if not privately owned, are not government agencies and can use their own discretion when it comes to moderating content and divulging information. So it’s possible and, judging by your question and wording, very thankfully probable that your postings would be reported to authorities.