Nipple piercings are usually easy for me to ignore and thus not a big deal, but as with most body-mods, I’m not a fan. Piercings, fillers, Botox, breast augmentations, tattoos, even fanciful hair colors… to me, they all exist somewhere between “uninteresting” and “off-putting”.
But as long as your body is your own, poke whatever holes you like in it, and adorn them as you see fit.