I really don't mind if there is blood or missing limbs in a game but like "Multitard" said if it is
too much I will disable it, because it annoys me then.
And I also think it depends on the genre. For example a game like "Resident Evil" is nothing without the blood and missing limbs. And for another game it is better to let out the blood and missing limbs because it gets in the way of the gameplay.
So it depends on the game ...