There are two main types of artificial intelligence: strong AI, the type that has not yet fully emerged that is able to make decisions on the level of humans, and weak AI which works off of a pre-designed algorithm using often using various statistical methods to feign intelligence.
The bots that are seen on Steemit are weak artificial intelligence, they do not have the capacity (yet) to think on their own or write original intelligent post content that makes sense. Furthermore, these bots are programmed with a goal in mind, for example given a list of users upvote every post in the #steemit category might be a weak AI bot strategy. There is really no intelligence involved besides waiting for an event to occur and completing a pre-defined set of instructions.
Humans beat out weak AI bots for a number of reasons. One is that each one of us has the ability to respond and give feedback on certain topics in ways that a weak AI bot cannot. Humans react to the content that they comprehend in articles. Many are intelligent in terms of art or creative writing, in short humans are far more multifaceted than bots are.
Anyone, even a bot, can post 100 times a day, it is truly a human thing to ponder for some time regarding a topic and write in regards to it, in a single well written post. Unique fiction, writing a thoughtful comment on someone's writing, these are the things that differentiate us, are some of the many ways of showing your humanity.
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As technology becomes even more advanced. Through research and development in various fields such as quantum computing and computer science, it is becoming ever more possible that we will see a day in which strong artificial intelligent bots are a possibility. As 
Humans are already using computers as an extension of their brains. When we are writing posts we often need to look up small facts on Wikipedia, or look up a word in an online dictionary. One day it could be a possibility that we will be able to transfer even our consciousness into a computer (like in the movie Transcendence). This occurrence has been termed by computer scientist, and thinker Ray Kurzweil as the singularity.
Quality posts could be used as a data set for machine learning, and could help in the rise of truly intelligent bots which one day could aid us in reaching the technological singularity. Therefore it is in our best interest as steemit users to write and promote good content.
