Blunderbombs considered nooby or unfair?

The only people that cry at me in game are mad I'm using them to counter the double gun insta kill they keep trying to run up on me with. Seems like they require more skill since I can easily kill myself with how close I'm using them but I keep getting people crying that it's unfair. Like my guy. Unfair? In a pirate game and they're trying to spawn camp? How much crack they smoking?