Our behavior affects success predictability

An interesting thought. We all know that data analysis brings predictability. But this will continue until we start using the results of our data analysis and eventually lowers the predictability. Let me show an example. After the analysis, the best time to post on HackerNews was found to be weekend mornings. Let's say all the startups start posting on these lucky days. This for sure will make these days busy and eventually lower the overall predictability of success (Success here is to earn more points to make it to the top of HackerNews).