Fairness: Grade based on effort and achievement, avoiding bias to ensure all users are treated equally.

Timely grading: Provide prompt feedback so users can apply it to future polls and improve.

Constructive feedback: Offer specific, actionable feedback to guide users learning and improvement.

Consistency: Ensure grading is uniform across posts to maintain fairness and reliability.

Clear criteria: Set transparent standards to help users understand expectations and goals.

Reflecting improvement: Acknowledge growth over time, emphasizing development and progress in grades.

All you mentioned above