ToME: the Tales of Maj'Eyal

So... what exactly does this mean?

Do we get random beasties spawning to attack us out of nowhere?
Is there some big bad on our tail as we play?

Or is it just referring to the general unfairness of Madness difficulty?

On madness your position is randomly broadcast to nearby monsters, and they get smarter to find you

Ah, so it's just a reference to the enemies tracking the player effect. Okay, I thought it was a difficulty feature in itself, apart from the tracking stuff.