From a psychological perspective, the posting of "have" is fascinating.
His posting is very well conceived and undertook probable several hours of fine-tuning.
He begins with a relatively low tone, saying nothing extraordinarily new , or especially interesting. Just an opinion like any other. He calls the people who posted here "desparate", if they cling to a certain opinion.
The next paragraph contains a tiny bit of a stronger tone. He calls the readers "stupid", which is the first real kind of insult, although a relatively mild one.
This insult is very much neutralized by the following sentences which do nothing special but offer the reader(s) his opinion.
The next paragraph is obviously much harsher. The poster didn't want to write down more in order to slowly climb up into his climax of insults, insteads he uses several expressions which are clearly meant to insult the reader(s). The amount of words used to express his or her opinion dwindles.
The next paragraph is not rather filled with "real" insults, but rather with indirect, even implicit ones. The poster clearly speculates on some being offensive on a special kind of readers, because they are expressed in a certain way. This is like a shot into the dark, with a weapon aimed at someone without knowing whether the "enemy" wars a bullet-proof vest or not.
The paragraph following that is a try to put the own opinion as the most important one in this forum. He or she even doesn't care about the fact that this thread is being read by an unknown number of lurkers, even worse: The poster pretends to be speaking for a group of readers he or she cannot know.
This is insofar interesting in that this is a clear expression of the own opinion - and therefore the ego - being most important to any one in his or her whole life. He or she expresses himself or herself as if he or she was being superior to anyone else on this planet, and everyone else is inferior to him or her.
This is a clear sign of a social disorder.
The last paragraph doesn't contain nothing personal of the poster anymore. It nothing but consists of insults. The poster is writing himself or herself into some kind of rage (like I do in other discussions sometimes, but without insulting anyone (at least i try to), which leads into a staccato of uttered wods like someone who is overwhelmed like a great anger and/or fury.
Also interesting is, that the amount of expressions expressing his belief to be superior to everyone else here increases drastically.
In this paragraph, as a summary, all personality is lost, and it is instead replaced by words voiced from an inflated ego.
The very last paragraph is written like - not an insult, but as a way to degrade a person. This is how I imagine a sadistic person finding lust in degrading another person - or even several ones.
I believe from this that this post is a) remarkably fine-tuned to produce the most possible amount of anger / feeling to be insulted / feeling of degradation in the reader, or b) this person has already had so much training in writing similar posts that this comes already naturally.
In conclusion, I'd call this person an inherently sadistic person which finds fun and lust in degrading people. His or her tool in fulfilling this lust re words - and in particular posts like this.
He or she assumes that he or she will provoke very, very strong reactions in he readers, the more, the stronger his or her words are which are used. Which is another hint towards the nature of this poster.
These reactions are also meant to generate nothing but attention. Here comes in the term of an "attention-whore", which he or she very likely is. Attention is like sustentation for the poster. He or she cannot live without it, otherwise this post wouldn't contain so strong expressions - expressions which are perhaps even hand-picked during year-long training in order to provoike the most strongest possible reactions. Expressions that he or she has perhaps assembled from other posters who use a similar style, which means that the poster is constantly learning in order to further develop his or her posts into a certain direction.
From people like that I would expect criminal acts.