Always act professionally when dealing with other professionals and customers. If someone acts like a troll, don’t act like a troll back. Don’t point out their behavior to others, don’t signal boost people who may be doing you wrong. Do report credible threats to law enforcement. Don’t try to get others to change their ways directly. Instead "kill them with kindness", and unwavering professionalism. Don’t block - instead you should mute, and ignore. It’s better to never react at all than to show a reaction when you think or feel you or what you have made are being attacked. If you must react, do it privately, or in an offline journal. Some people may be having a bad day, and may become converted to a close ally, or a super loyal fan if you don’t attack back. There are trolls out there, and they quickly lose interest when they realize they can't get any satisfying reaction out of you. Simply put: don’t burn bridges, don’t feed the trolls, don't help people to make yourself into their enemy.