Some users advice us to write long posts, but does this matter? to me it's a big no! writing a short post with detailed information is better than writing a long story with less content.
I agree with you @whatsup, we need engagement and connections than just posting better content because a lot of minnows have been writing good quality posts but still their posts do not get upvotes.
If I want to go deep into a topic, I am not sure that a SteemIt post would be my main choice in a source. So, My preference leans towards casual and fun interactions.