I'm not saying you're wrong but if you get mad and then respond to them, you're giving them what they want. You're getting mad and letting their words get to your head, which is what trolls want. Of course, their actions were inexcusable, but their actions being inexcusable doesn't mean that you breaking the TOS in response becomes excusable. It becomes understandable, I can see why you did it, but that doesn't completely cross the fact out that you broke the TOS.