It is not about you
When other people are hurt, fear has captured their mind. That fear can produce anger, self-pitty, depression, judgmental behavior and other states of mind. Depending on the severity, people who are hurt take actions they usually later regret. Their judgment is clouded with these emotions and they stop being rational. In severe cases, they attack you. Usually verbal attack is the simplest form of an attack. Especially in written form when they feel safe and not threatend (think about all the internet trolls for example). They are hurt and the way they feel better about themself is to get the fear out in form of an attack so they can feel better for themself. Little they know, that anger produces even more anger and they are by this behaviour creating new version of themself that is even more sad, more insecure and looks even more stupid in front of their internal judge and others. Sometimes we can get absorbed into their world thinking that it is about us! This is so typical for our mind. That the attack, reaction, nasty behaviour is about us. About person who is being attacked, yet it is totally the opposite. Their behavior is completely outside of our control and therefore we should not spend a single minute in their circle of fear and most importantly, we should not take it at all personally.