difficult child plays Runescape. I guess I should say did, I bought him the new xbox 360 for his birthday end of March and he nearly never signs on to his computer to even IM friends, let alone play Runescape.
I had purchased difficult child a 3 month subscription to be a full member on Runescape, as well as for my cousins' son for Christmas. They both said it is well worth the money to pay to be a full member.
I wasnt' worried about difficult child giving out personal info to other players at all, he is pretty computer savvy and knows how to stay safe on the net. He's very good about it, thankfully.
There is a parents information section on the Runescape site to help parents understand the game and the personal interactions and the safety procedures they have put into place etc.