No, people with NPD have a tendency to minimise failures or project them onto others, rather than straightforwardly discussing them. Now obviously they're fully capable of not indulging in those habits if they choose to, but then there's nothing narcissistic in this discussion.
Kidding aside, she attempted to hide the picture, not the username itself. This in turn caused a Streisand effect that led to people easily tracking her down and doxxing her.
It seems like by detaching her current username from it, the name that was originally on the post tagging her appeared as it did originally, anyways that is what it seems like to me. Nice try lol 😂
If this is sarcasm I don't find it funny. If someone thought you were serious you could reinforce that view in them, and this is obviously not okay to not just do but for a photo for social media it's egregious. If you are being serious that feels like a bit of a "mask off" moment.
We have the freedom speech, but we don't put it above all the other basic rights and thus, it has well defined boundaries.
Edit: Also freedom of speech often seems to be interpreted as freedom from opposition. Yet, telling someone they are a scumbag because they are repeating nazi ideology ist totally in accordance with that.