It's mostly on twitter or reddit. As a side-note another thing that bugs the shit out of me is when someone looks at my history to find a reason to disregard my comment. (Not accusing you of this by the way)

"Oh I thought I was going to have to respond to you until I discovered you've posted somewhere I don't like."

followed up by a flood of down-votes accusations of being a bot and sometimes a ban when I was posting legit content and previously with a very positive score.

Happened to me twice last month. Once for bringing up the Code of Conduct on /r/linux.

edit: here's a perfect example that made it into print and halfway around the world while the flawed reasoning and debunking has yet to gain traction.

https://www.theverge.com/2018/10/2/17927696/star-wars-the-la...

followed up by:

https://www.cnet.com/news/actually-half-of-the-last-jedi-hat...

http://monsterhunternation.com/2018/10/02/my-russian-bot-rev...