Obviously the guy is lying, no question.
But as for "just how the internet works," no. Even Reddit makes doxxing against the rules. Even entire sites that are dedicated to exposing people - see Dances with Facts on Regan Chastain - forbid readers to engage on any social media or forum. Posters here message families, post messages on workplace sites, follow people around the internet, continue to harrass people once they delete profiles, call up personal numbers, post personal information on the site, etc. That is absolutely not allowed on other sites, and the brojos should at least make the pretence of banning it here - not that they can since there's no registration and no way to ban users. But no, this behaviour is dangerous and is absolutely against internet practice anywhere else. The brojos could get in serious trouble for encouraging this behaviour. There can be threads exposing cheaters without encouraging and condoning people to harass them.