Also, the more I think about it the more it seems like the Bara Bara Fruit might have a lot of hidden potential, like Luffy's Gomu Gomu Fruit.
Like, we know that Buggy's levitation powers don't apply to his feet, but there's presumably nothing stopping Buggy from standing on a piece of wood and then lifting the wood with his levitating hands. He could literally surf through the air.
And, even though there's a definite range on his body parts, he could cut off a finger and shoot it down someone's throat. Or just separate into particles and reform once he's been inhaled by his enemy.
I am expecting Buggy to be one of the top tier fighters by the end of the series and a critical player in the future storyline. He'll probably end up killing Shanks or something.