This is indeed interesting information... As someone said in the comments, we should choose do we want to compete with a lot of others posting at the same time, and expect bigger upvotes... Or post when there are less content and get better "positioned", but with smaller "possible" audience...
It's similar to creating Adwords, or FB advertising campaign... Do you want to pay more and compete with big fish, but with less traffic for a certain amount of money, or you will search for another "keyword" that is undervalued and get more traffic to your post/project...
Anyways, thanks for sharing!