don't be writing just to write ?
There is a concept called discretion, which involves personal choice(s).. and yes BIG words and ideas, in the case that you seem to be admitting to having difficulties understanding certain seemingly obvious points, connections and concepts (whether purposeful or not).
I doubt that you can determine arm-chair psychology in a sufficient enough manner to understand the purpose(s) behind any members posting behaviors, unless the member tells you, and surely reading a bunch of posts might not be enough to figure out what you are attempting to assert as your supposedly sage advice.
Anyhow, you seem to be dealing with a lot of insufficient information/knowledge and a considerable amount of presumption.
This I can agree with 100%, one thing that is tough to discern over the webs is the persons circumstances that is posting. You may be a quadriplegic with nothing but time on your hands for all I know. Unfortunately I personally don't have the time to read your walls of texts so have found a happy medium being that I usually read the small posts and those that people quote. Unless you quoted R0ach and then I just skip it.
Surely it is good to have a system that helps you (personally) to get what information that you feel that you need from the forum or from this thread, and if you have 20 pages of wall observer to catch up on, then some posts are going to more likely NOT be read, or they might be just skimmed to see if they are talking about any key relevant topics or maybe just looking at memes is easiest on certain days.
The reality could be that a long post about BTC price analysis might be more important, relevant and helpful than a cute post about hats, but it remains understandable that sometimes ONLY the cute posts will be read by some members at some times because there are only so many hours in a day. Perhaps on some days, some members only have 20 minutes, if that, that they can dedicate to looking through the WO thread, or some other forum thread that they might consider to be reasonably helpful to them.
No one writing long or lots of posts would presume that his/her post are being read completely by anyone or even that anyone has read some of those posts, but that still would not warrant that the posts are not worthy of being made and posted, even if some readers find them less valuable than others or that the only person finding the post(s) valuable is the one who is writing the post(s), which also could be sufficient enough reason to justify putting the post together and hitting "send." Those kind of personal choices remain part of the power of personal discretion.