This reminds me of a friend I had during my last days in the borg. He didn't know my 'worldly' leanings, so he valued what appeared to be my good JW advice. He wanted to get his ear pierced and kept asking me whether he should do it or not. Growing tired of his asking, I told him to go for it. When he asked what to do about the reaction of the brothers and sisters at the hall, I simply told him not to wear it to the meetings. He then informed me that that would be living a double life and he simply couldn't do that.
Honestly, though, if you want to get your ear pierced get it pierced. It's your body...your decision.
Brian