I mean I know someone who has had a temp ban before for name calling in a similar situation, actually one where I would say the person he called a name was more deserving of retaliation because it was a tank who sat down and refused to continue unless the group passed his votekick on an innocent dps.

I think (just like the forums) GMs don't consistently enforce the rules across all reports which is really the frustrating thing here.

For the OP - sounds like maybe this guy has a problem with your FC (they were sympathetic enough to you to randomly tell you his alts name anyway) so perhaps that contributed to his antagonism towards you. As I said I don't believe this story was 'heal pls' followed by 'shut up idiot im #bestasteu' because that seems like a sorta crazy escalation is all.