And then you go on and complain that "people are not here for the reasonable discussion". Because you are, right? Is this what you mean by "expressing yourself"?

Yes, when other people refuse to be reasonable, I see no reason to put effort into explaining something that either they won't understand, refuse to try to understand, or don't care to discuss rationally. Those people who try to improve themselves will get effort from me. Others, like you, get merely my opinions without justifications, as the time spent writing out the justification is wasted.