There is nothing wrong with being nice, but there is something wrong with the expectation of it.
Firstly, “nice” is subjective.
Secondly, this subjectiveness leads to many of you projecting some wildly misguided expectations of niceness onto others.
Thirdly, when these expectations are not met, you hold others in contempt, but only because of your own nonsensical expectations—one you apparently expect a total stranger to respect, yet you, yourself, take no time and make no effort to understand the other party so as to avoid miscommunication in the first place.
Therefore, the only indignant one in said scenario is you, for selfishly failing—intentionally or otherwise—to at least try to place the object (the “whom”, in this case) within its proper context within the subject-object relationship of communication so as facilitate communication in a way that indeed minimizes miscommunication.
Now, moving on: while there are undoubtedly exceptions to the following, it is almost forever, and probably fucking always, MEN (though, a juxtaposition that can be scaled according to any social privilege, of course) who so often do this and then act dumbfounded when being called out for their inconsiderate and dumbass behavior.
This is because the physical strength of males in conjunction with the not-so-unrelated “toxic” male ego have always provided men with, up to and past the point of civilization* (a debatable term, but go with it for now), an advantage—indeed, “privilege”—within even the smallest of social exchanges imaginable, of and within a human context for hundreds of thousands of years, save those in which another male can literally beat his ass. This has allowed men for so long to ignore the feelings and other social cues of any other living being on Earth.
Now, the only thing of which most men are majority cognizant within social exchanges is strength (and-or those things providing the illusion thereof). This is because all other things have not been relevant to male survival, nor his place within society…at least, not until now.
All other things have previously been shunned and deemed “feminine” by men as a result of their perceived impotence. ’Tis no coincidence men are awful at communication relative to women; and thus, on the whole, men are less empathetic, attentive, and practically inept at picking up on social cues.
Just look at how often men believe themselves to be possessed of such superior “logic” because they have a tendency to break things down so simplistically as to divorce these things entirely from reality, so much so that when you request clarification on whatever-the-fuck-dumb-idea they were trying to express with what is likely to be their incomprehensible word salad, you are met with yelling, tantrums, gaslighting, violence, and all other things we would not tolerate in a decent human being, had nature not made dick so good.
Ultimately, males have literally been devolving to the point of social retardation, and I mean this with respect to proper use of the term and not the derogatory manner in which it has long been directed at human beings who persevere in life even in the face of cognitive differences.
Meanwhile, women, who have been forced to rely upon everything else but physical strength—in order to, ya know, FUCKING LIVE—have been evolving in every way possible so as to surpass men in all but physical strength. As such, men on average are more stupid and less capable than women. Sorry ‘bout it.
People are fully within their prerogative to contest this idea, of course. In fact, I encourage all to do so. I only also ask that you do not come to me with your questions, comments, concerns, nor complaints, as I have no interest in discussing them with you: like, ZERO.
So, so very much ZERO.
You know, like that “not number” between “1” and all the other “not numbers” that make up an infinitude of “not existing” numbers: yes, that one—which is to say, my interest in whatever you have to say is non-existent, truly.
But once again, I ask of you not to take this personally. You are not in my shoes, nor I in your shoes, which, when all is said and done, is kinda the whole fucking point.