I like to get to know the people I RP with and I'm not opposed to sharing personal information about myself but I feel like a lot of people on the site prefer the anonymity and business like way of approaching a RP so there's always an awkwardness about it. There are people on the guild who are super friendly and enjoy chatting about things outside the RP but there are also people who feel uncomfortable with it. Either way it doesn't really bother me what someone's preference is, I always make sure everyone knows they can tell me to shut up if they want to, hehe.
Are you thinking of creating a chat room with your next RP?