Long posts don't necessarily mean all the content is on target, some have repetitive writing, some have explanations that are difficult for some members to understand. A good summary with a simple explanation makes it easier for the reader, even if it is written in just a few lines, it is also necessary to use simple language to make it easier for newcomers to understand the meaning of what they are reading. I'm not the type of person who is lazy about reading, but I often pass by writing that doesn't really benefit the reader.
Exactly, I agree with you, it is better to go straight to the point, so that the person reading does not feel discouraged when reading that threads, many people don't like long articles, so it is better to write it in short so that everyone understands where you are ending too, but sometimes long article is very good because he is sure that you know what you are doing but he must be in point meaning quality, some long article is very interesting when reading because you will know what is talking about the wells are in good shapes some long article, people don't understand it because language he used will not be understood by everyone, and some newcomers won't be able know what his talking about, therefore it is preferable to use common English that people would understand your Words.