I doubt very much the police will take things any further. Provided the OP leaves the other person well alone. When the lead singer of Lostprophets was charged with disgusting things aimed at very young children, I Tweeted and re-Tweeted the names of the two women who were involved in it with him. People were ,quite rightly ,utterly disgusted at what Ian Watkins got those women to do to their own children. Well I and about a thousand other people passed the names of the two women back and forward on Twitter. The feeling was,why should they be allowed to keep their anonymity?[Obv. it was to protect their children's identities,but considering the children had been taken into care and might very well be given a new surname and be living in a completely different part of the country we didn't see the harm]. Anyway, what came out in court was so disgusting that I was up most of the night on Twitter. The next day there was a knock at the door. It was a policeman and policewoman. Straight away I thought something had happened to my 19 year old son. However immediately they reassured me that my son was alright and also that he wasn't in trouble.They asked if they could come in. As soon as they were in the living room I got the whole "You have the right to remain silent" speech. I was absolutely gobsmacked and wondered what on earth I had done.Then the man asked me if I personally knew Ian Watkins. I said of course I didn't. Then they said they had received a message that morning from a police force in Wales that I had been Tweeting the names of the two women and that it was a criminal offence to do so. I apologised and said I had no idea it was against the law and if I had known then there was noway I would have re-Tweeted the two women's names. I deleted the messages and also on Facebook there and then. The policeman said he could tell I had been very co-operative and that this will be passed on to Cardiff Crown Court. But he said it was up to them to decide whether they wanted to go ahead and prosecute me or not. This was in November 2013. I've heard nothing since. The only thing I would say to the OP is to just bide your time and hopefully it will all come to nothing,especially if the other person doesn't want to go ahead and press charges against you. But with what happened to me, I learned my lesson and I will never,ever do something like that again,no matter whether it might be out of ignorance or not. Just in case I am breaking the law.