Most trolls don’t have the nerve to act the same in “the real world,” although their thoughts and feelings may be more closely aligned to their online persona than we’d think.
Of course trolls would never act like that in the real world, there are many interesting psychological dynamics for trolling. Most of it comes from a negative self image projected outward. Hence when I get trolled, I feel bad for the guy/gal because as much as the word might be hurtful to me, I know that the troll is more than likely 10 times more miserable than me at my darkest time.