From what I just learned about sea lioning, it seems you arr doing it :)
I think it's fair, in this day and age, to ask if there's corroborating evidence for the contents of a tweet/article.
Sea Lioning, I think, is a lot more about antagonizing/bullying a victim who is speaking up about about whatever act victimized them, while disguising your bullying as being a good-faith investigation into their claims. When it's actually in bad faith, and your intent is primarily to increase the "cost" to victims of bringing forth their complaints.
HN also doesn't follow you around. If you post here, people may ask you to back up your claims, and you are free to ignore them and/or stop visiting the site.