The internet is built on the foundation of insightful, helpful, thought provoking information, how much of it did you contribute?
I know I can do better, make better content, ask better questions, push more boundaries. You probably know the same about yourself.
When posting to Twitter or Facebook, take the scientific approach, provide data to back up your claims, give use cases to prove it works and most importantly tell us how it can help everyone else. Then you have half a chance of changing someones opinion, making someone interested, doing better work.