Be reasonable. Never say anything when in an emotional state. Words which come out then will be regretted later. Those words deserve a place in journal for further examination and not in inbox.
Before posting, remember:
No name-calling or personal attacks.
No harassment, bullying or threats.
No offensive, hateful, revolting or disgusting images.
Be kind and friendly.
Know when to stop and leave the conversation.
Ignore and Block offenders.