You can really share or hide as much as you like, in my opinion. If you are posting information beyond say, physical attributes/basic bio, I'd add a disclaimer that the knowledge is strictly for OOC purposes and maybe have a section for rumors or RP hooks if you want ICly public things that people could pick up on.
Regardless of whether it's on a wiki, tumblr, blog post or just something someone saw in game while OOC, metagaming has a chance to happen. But that's also why RP is a collaborative effort that involves a certain amount of trust in other people to not overstep any boundaries or "cheat" within the system.
As for Garlean/Cover story, I like to treat my wiki as public knowledge. So if I've written a post or RPed it, it's fair game to add to the wiki. (I have been debating removing my history section, as it's years out of date).
Regardless of whether it's on a wiki, tumblr, blog post or just something someone saw in game while OOC, metagaming has a chance to happen. But that's also why RP is a collaborative effort that involves a certain amount of trust in other people to not overstep any boundaries or "cheat" within the system.
As for Garlean/Cover story, I like to treat my wiki as public knowledge. So if I've written a post or RPed it, it's fair game to add to the wiki. (I have been debating removing my history section, as it's years out of date).
