If you are generating a new thread, It would depend on the subject and focus of interest, we have had threads that are part of a story, describing a country or a current issue. Generally threads on human qualities, wellbeing tend to be a little long. Too long a thread sometimes becomes counterproductive as the reader would lose the interest before reaching the end of the thread and often stands the risk of being misinterpreted. Forum replies can be lengthy to convey the point or to actively participate in the discussions. If you have a very good subject and the details go into a few paragraphs, you can post it as an article and get more points than the maximum of 5 on the forum.