I've have noticed this in all platform that people in different community tends to engage more in platform when they get to read posts that are short and not post that are long. Many posts that you see where people have commented on try open the post and check it out what you will observe is the post is concise and have maximum of 4-6 paragraphs.
I'm not writing this to go against or discourage those whose post are very long but I'm trying to call there attention why they will take there time to write quality post in the platform and they have less comment or conversation under it.
It is better writers make there post to be consice to a certain range and do well to nail the meaning of there post within this 4-5 paragraphs because participants tend to be more interested when the post written is not long and lack interest when post long.