Necessary? Is it something that others should know?
Exemplary? Are you presenting yourself in the best way possible?
Thought-Provoking? Is your post stimulating?
Idealistic? Is your post stimulating?
Quotable? If someone used the words in your post to define you, how would you be remembered?
Understandable? Can people understand what you are saying?
Essential? Is what you're saying critical to the conversation or post?
Trustworthy? Do your words reflect a trustworthy human being?
True? Are your words factual? Do not lie.
Exactly what you intended? Does your post say exactly what you intended?