I think you realize that at some point a line has to be drawn, given you called "targeting another person's emotions" wrong; and also that everyone's line is in a slightly different place and what's reasonable to some will be uncomfortable or hurtful to others.
Given that, why is it wrong for people to try and influence their community in such a way that it minimizes people's discomfort? Shouldn't every community have the right to self-determine what conduct they're okay with?
I've always believed that you should be liberal in what you accept but conservative in what you generate. It's fine to strategize your own behavior to come across well to as many people as possible (for example not eating meat in front of a conscience-driven vegan) but when it comes to other people's behavior you have to be very judicious about the difference between uncomfortable (but natural) signals and malicious actions.
In this case, I'm highlighting intent when I say "targeting." I shouldn't become upset when someone that always comes across as abrasive comes across as abrasive to me, but if someone goes out of their way to consciously be more abrasive than usual then that's a signal I should pay attention to. If someone who is usually very meek says something slightly harsh, then I should multiply it by a large factor to get back to their internal mental state (which is what I really care about). Likewise if it's a case where I should take what they say and divide it.
Given that, why is it wrong for people to try and influence their community in such a way that it minimizes people's discomfort? Shouldn't every community have the right to self-determine what conduct they're okay with?