turn off the lawyer hat), is have you asked the person to stop? Have you sent a sincere boardmail saying it impacts you negatively and you'd appreciate it if they just backed off. Things can get carried away and people may be hurt without knowing it. And despite the differences on this board most people on here would respond positively to a sincere BM. And I know for some that are being bullied it may be too hard to do or be unfair, but I do think it takes one person to step up and be better. It makes both parties better and in the good, better, best options, I think it is best.
Now, if they respond negatively, go to el jefe with the BM and problem solved. I think a lot of disagreements can be solved through a direct approach expressing one's feelings than a passive aggressive take.
With that, I'll stop playing board adviser and start complaining about Trump again.