Agreed, plus there's the shit she did to her body. GOd, I hate piercings and tatsThe camwhore part certainly is a massive negative for me personally but it's not the sole reason for my hatred.
Her "quirkiness" is what does it for me. Her personality seems over the top and fake. While Nami can be quirky and annoying she still gives as hard as she gets. Nia is quirky, off putting, weird and wallows in self pity for reasons that are still hard to understand. There is no shot that anyone who looks like she does (she is deeply unattractive to me but I can admit she is objectively attractive to most) could end up as isolated as she claims to be. Even with her personality.
That all makes it really hard for me to stomach her on screen presence. While Vic naive sweetness comes off to me as genuine, Nia seems fake. Like she is playing a part. Idk it's kinda hard to explain so I get why most cannot see it the way I do.