Whether they use their own account, sock accounts, are unregistered or anonymous...they are trolls. And you indeed had an issue with them on Amirite.
Interaction, conversation and debate may at times lead to arguments. That doesn't mean they have to become nasty, though some do. You, and others, feel the need for a playground teacher, some of us do not. Moderators or not, people do get quite nasty with each other without technically breaking any rules. So moderation doesn't eradicate nastiness, it simply stamps its approval on one flavor while silencing another. I much prefer an honest F you from someone over a dishonest passive-aggressive attack where they don't own their nastiness. But that's just me.