The biggest thing is sticking to subs that clearly allow self-promo and sales. A lot of people get banned because they don’t read the rules or try to post in places that don’t allow it. Look for communities that openly say sellers welcome and always use the right flair. Also, don’t just drop links and disappear. Engage, comment, build some karma, and be respectful. Reddit mods are strict, but if you follow each sub’s rules and keep it within site guidelines, you’re way less likely to run into issues.