Earlier quoted context omitted.
It's not the job of your interlocutor to make your argument for you. If you can't make your own argument, you don't have an argument.
You could replace "shitty" with "thoughtless", "callous", "cruel" for example. It's quicker, and more satisfying, to simply use the shorthand "shitty". Also, what argument ? Does the fact that the lady in question did not have anything to defend against, nothing to be ashamed of, really hinge on the exact definition of the shittyness of reddit trolls? Heh. So it's simply a statement. And if you disagree that such beh…
The truth is cruel to people who are wrong on the side of the argument, because they get their feelings hurt. Cruelty says nothing about the validity of an argument. This is a complete waste of time.