[quote=@ACHTUNG]Ya be thinking too much about the people here... Having spoilers isn't that much different to letting someone have a taste of a blend of tea you've had but they haven't... It ain't gonna ruin their perception of said tea, or in this case show...
[/quote]

It put me off ever watching Madoka because if you [i]know[/i] the twists in advance, it's hard to want to watch something that relies on revelations like that. So I'd say that it makes sense if a detailed bio would spoil the entire pacing of a show.