Do they add value? Perhaps... some are lessons in history, some are reviews, some are strategy articles., some comedy and outrageous. , its a blogging platform so we shouldn't necessarily focus on this topic too much, but I feel like everything I write should add something.
Some create conversations, laughter, relationships, new posts, new interests, influence a changed behavior. While there is visibility on some, a lot of the value on Steem is hidden in minds.