I treat the internet exactly like I do my regular life. I say what I think. I try to act in good faith and treat others like I want to be treated. I am hard on myself when I feel I havent lived up to those standards, and I dont really care what other people think of if I think I have.
One of the truths of life is that you cannot really control what other people think of you. People are going to have their opinions, sometimes for good reason and sometimes for no reason at all. It is best to set standards for your own conduct and live by those the best you can. Caring about what others outside your immediate circle think of you is a dead end. Because there is only so much you can do to control that.
If someone is being hostile or misinterprets you or has a negative view for whatever reason, and you have done the best you can, what can you do but let it go?
An opinion does not turn into a fact simply because the person holding it feels strongly about it.