Writing a profile bio feels like a personal thing, but platforms actually have guidelines around what you can and cannot include. Most platforms do not allow you to add outside links, phone numbers, or email addresses in your bio. Some also have rules against using certain words or making income claims that cannot be verified. Beyond those restrictions, the writing style and content are mostly up to you. Are there specific bio rules you have come across on a platform that surprised you or made it harder to present yourself the way you wanted?