I will second (third?) what people have already said. Â Do what you enjoy.
I personally love to read a character's wiki, journal, IC posts, what have you.  I sometimes use it in RP as a hook of sorts, if another character and mine tend to share the same background, I may bring up my own character's background in a conversation to see if the other character takes that hook.  Or my character's current affairs just happen to touch on something about the other character's past.  What I do NOT like to see though is metagaming.  I would put me off if people actually knew personal information that was put into someone's journal or posts, like their father dying or something. Or if another character knew everything about my character's past.  I did include a comment regarding what can be used in public RP though at the end of Roen's wiki, hoping that it would help me avoid those situations. So far, I've been lucky in that regard.
I would like to think that journals and wikis are more conducive to interesting RP than metagaming though. Â One character commented off hand that he thought he'd seen someone that resembled my character at the battle of Carteneau. Or another character casually mentioning that they are hunting down Garlean defectors. Â I like those little mentions because that makes the conversation interesting! Â And they are possible hooks!
So write what you like, but maybe put a disclaimer somewhere obvious to avoid metagaming. Â It may or may not work, but at least it is there. Â I have never done journals myself, but I would think it is a great exercise to flesh out a character in one's own mind.
I personally love to read a character's wiki, journal, IC posts, what have you.  I sometimes use it in RP as a hook of sorts, if another character and mine tend to share the same background, I may bring up my own character's background in a conversation to see if the other character takes that hook.  Or my character's current affairs just happen to touch on something about the other character's past.  What I do NOT like to see though is metagaming.  I would put me off if people actually knew personal information that was put into someone's journal or posts, like their father dying or something. Or if another character knew everything about my character's past.  I did include a comment regarding what can be used in public RP though at the end of Roen's wiki, hoping that it would help me avoid those situations. So far, I've been lucky in that regard.
I would like to think that journals and wikis are more conducive to interesting RP than metagaming though. Â One character commented off hand that he thought he'd seen someone that resembled my character at the battle of Carteneau. Or another character casually mentioning that they are hunting down Garlean defectors. Â I like those little mentions because that makes the conversation interesting! Â And they are possible hooks!
So write what you like, but maybe put a disclaimer somewhere obvious to avoid metagaming. Â It may or may not work, but at least it is there. Â I have never done journals myself, but I would think it is a great exercise to flesh out a character in one's own mind.
