As MK27 said, you are presenting your subjective interpretation as fact. That, in my view, is at least as arrogant as the people you are criticising.
The flip side - subjectively - is that less experienced posters contribute to the treatment they receive. They attempt to trick folks into doing their homework (for example by presenting a "challenge"), without even making an attempt themselves. They make mistakes of a very basic nature that they could have avoided if they even bothered to read the first chapter of any basic textbook on the subject. They often bump their posts accusing responders of tardiness because they do not get a reply within ten minutes. They refuse to read FAQ lists, on this and other sites, (which addresses a lot of the commonly occurring problems) because they deem it a waste of precious time. They don't bother to do even a basic keyword search to find existing threads about similar problems - again because that is a waste of their precious time. They post a lament about their code not working, but refuse to post the code, because others should understand without being told. Some folks post an an incredibly trivial technical question, or a question where they decline to provide the details needed for anyone to help, while portraying themselves as senior developers and senior managers who other members should pay homage to.
The folks who do these things invariably come in with a sense of entitlement. They demand answers to their questions quickly. They demand to have their homework done for them. They demand useful answers, while declining to put effort into writing an understandable question. They demand that others sift through hundreds or thousands of lines of code to find a problem they haven't bothered to describe beyond "it's not working". They demand the right to do little work, and expect others to cater to them. And, lastly, they demand to be treated as equals (or even, in some cases, as superiors) while showing disdain for other members and demanding a respect they don't show to other posters.
All this, in technical fora, where - once you have learned the ropes - the main paths to achievement (and, if you are lucky, respect of peers) are through your own effort. Your own effort in finding information. Your own effort in asking questions to elicit information. Your own effort in trying to understand a problem and solve it yourself. Your own effort towards problem solving.
Frankly, you are lucky these fora exist at all, and that some people choose to devote time and effort into answering your basic questions. Without payment. Often without recognition. And often while taking abuse from people who think of this as a free homework factory.