ive never joined. a friend had a bad experience when a total stranger (she thought) started talking to her and discussed her house, her kids hubby and job etc their holidays they had been on....it was the classic friend of a friend but my friend had a meltdown when she realised all this stuff was being seen by people she didn't know! having had a recent break in she was paranoid and has cleaned the decks and cancelled all her internet stuff. she rings people now for a chat.....