[know.your.why]

This has been widely known for years, but might as well read this official narrative on the subject...

https://www.psychologytoday.com/us/blog/your-online-secrets/201409/internet-trolls-are-narcissists-psychopaths-and-sadists

[know.your.why]

Aaaand...

While you're there you really should read this one too. Have your kids read it esp as they're getting into dating relationships.

https://www.psychologytoday.com/us/blog/here-there-and-everywhere/201701/11-red-flags-of-gaslighting-in-a-relationship

[tired&retired]

Per the article at the link you shared:

“In this month’s issue of Personality and Individual Differences, a study was published that confirms what we all suspected: Internet trolls are horrible people.”

👍

[tired&retired]

“... the associations between sadism and GAIT (Global Assessment of Internet Trolling) scores were so strong that it might be said that online trolls are prototypical everyday sadists.” “