What might be "useless" to you may have value for someone else. I don't Steemit will grow at all with an elitist attitude.
By deterring people to post any content they want is a form of censorship in my opinion.
If Steemit is to turn out to be something, it needs to grab the attention of the mass majority other wise it will just wither and die a slow painful death.
Bot's don't see in terms of value or useless. They just vote without seeing either.