"Which is more likely to change the world - an old VW, or an essay on the Internet?"

Yes, I've been thinking the same thing. The value someone gets from information can take many forms. A single idea that came from, say, a travel post, could be valuable to a lawyer to win a case, a person planning a vacation, a geologist doing research, and an author writing a novel. Even the posts that are perceived by many to be valueless might provide someone with a chuckle or temporary escape of some kind, reducing their stress, or at the very least, giving them an example of what not to post.

I give this post ten stars out of five! Of course, that's just my own subjective evaluation. No individual has the capacity to judge what value something holds for others.