Too many people are unnecessarily judgmental and simple minded.
It's one thing to not like tattoos, but who are you to declare that a person's image or appearance is ruined dbecause of them? Also, who are YOU to say
"so-and-so will regret them later" Are you them? Can you see the future?
Anyway, i'm not the biggest fan of neck tattoo's on females but Rihanna's is very simple and discrete, like the rest of her tattoo's, so good for her.