I would report to irl authorities if outside game.

Having said, I still find it hard to comprehend how people can let a video game character pixel get to them. If someone follow/trace me, whisper spam me. I Ignored you, completely denied your very existence, you are nothing to me, your very presence goes in to the void. We are humans the desires that someone acknowledged your existence. The worst thing/feeling is someone not acknowledging your very existence/you don't matter, you are nothing.

Everyone is built differently/tolerance for kind if things. Take screenahot/logs and submit.