MY personal thoughts.
One of the biggest problems on any forum, is that of how members, answering a question, perceive the tone of the writer,
It doesn't matter if English is not your first language, and your local perspective of how to talk to people is more aggressive or submissive the principles are the same, if the question shows a lack of knowledge on how the product works, then it is no good immediately spouting off reams of jargon, try keeping it simple, If the first post looks feels aggressive, the natural response is to be equally aggressive, try to curtail your aggressiveness and give a calm answer,
We will always come across the modern [I Want , I want it now, I won't wait] man, they are the ones who start with an aggressive first question, and no matter how many times you or another member ask for specific details will not give them, and then get more aggressive in their writings, we have only 2 options with this type, first is to step back with sorry I cannot help you any further, or stand 450mm [18 inches] from the nearest solid wall, place hands on the wall at shoulder hight, lean forward , and bang the wall as hard as you can with your head.. [I don't recoment method 2]
As members, we are all responsible for this site, the tone it presents and maintains is as much our responsibility as it is the management team, I urge fellow members if you feel a post is becoming targetted with aggression or undesirable language, even unsolicited advertising, please use the tag and report it, you cannot expect the mods to see and pick up everything.