It has happened once, or maybe twice, that a stacker was inappropriately rude in their reply. I just ignore them, and don't engage. I think I downzapped once...

I try to remind myself that I don't need to have an opinion on everything, and should not engage online when I'm tired or stressed. When I forget this maxim, I write "dumb" unintelligible stuff. I'm getting better at it with age, though. 😅