Was GLaDOS initially "too mean" for Portal 2? [closed]
Solution 1:
Yes. The commentary node in one of the first tests says this:
GLaDOS originally was a lot more cutting in these opening rooms, given that she’s talking to someone she perceives as her murderer. Playtests revealed, though, that it was a bit grueling getting brow-beaten by GLaDOS this early in the game, so her arc was rewritten to give her more of a slow burn towards the player.
I don't think any of the original dialogue from GLaDOS is anywhere in there, though.