[Chaos]

The history tab is not an IC source of information by default, and there is a wonderful invention that allows people to figure out what can and can't be discerned through research and what have you called asking.

In other words, the history tab does not promote metagame; it's the idiots who think they can get away with using info their character wouldn't know that promote metagame. The idiots can be weeded out.

Also, I fail to see how having a 'mysterious past' makes anyone more approachable. You can have the most fucked-up backstory that never approaches edgelord territory and would be made into a game by Telltale if they got their hands on it, but if I find your character unbearable/awful, I won't even try to see what their past is like.

Moreso when some characters aren't completely fleshed-out badasses out of the gate. Some people start off as fresh-off-the-boat adventurers that are looking to add weight to their name and history.