The conversation about portraying others is continuing. I just wrote a couple pages of text for Story Games, trying to show how creative works can potentially harm other people. But then Shreyas’ nailed in very concisely.
When you write about a subject, you endanger it. It’s your responsibility to recognise and respond to this endangerment.
When you write about yourself as a subject, or about a group of which you are a member, I trust you to write about it with care and grace and knowledge, knowing that your sense of self-responsibility motivates you to take appropriate precautions about what you’re saying.
When you write about something else, then to earn that trust, you have to assertively demonstrate that you are aware of the danger inherent in your expression, and you’ve taken appropriate and complete measures to protect your subject.