i absolutely agree. he honors tradition and ‘rules’ but in a different way. during Azanulbizar he had braids, or at least adorned his hair with big cuffs (very similar to thorin’s). i think after the horror he’d seen there he realized that jewellery could never replace the scars. physical and psychological. also, i think as a substitute for the braids he used tattoos. i think every tattoo on him carries a story. who and what he lost. where his allegiance lies/durin crest and so on. and every scar is a reminder of what he fought for, who/what he protected. both those things are very permanent, unlike jewels in hair.