Is spreading someones real life name around in general chat wrong?

[TalithaSolarien]

Are you playing on PS4?

Then every other PS4 player can see your PSN name.

And when your privacy settings on your PSN account are messed up, everyone can see your real name when he searches for your PSN name.

Even without messing with the defaults no one can see your real name on the PS4 unless they sent you a real-name request that you accepted. But your PSN id might be a good way to start digging, esp. if you reused that name for other services where your real name wasn't as protected.
What worries me is that someone took all the effort to do this.